161591220

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:260

約数の個数: 288

約数和(自身を含む): 606735360

約数和(自身を除く): 445144140

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 31, 35, 36, 42, 45, 49, 54, 60, 62, 63, 70, 84, 90, 93, 98, 105, 108, 124, 126, 135, 140, 147, 155, 180, 186, 189, 196, 197, 210, 217, 245, 252, 270, 279, 294, 310, 315, 372, 378, 394, 420, 434, 441, 465, 490, 540, 558, 588, 591, 620, 630, 651, 735, 756, 788, 837, 868, 882, 930, 945, 980, 985, 1085, 1116, 1182, 1260, 1302, 1323, 1379, 1395, 1470, 1519, 1674, 1764, 1773, 1860, 1890, 1953, 1970, 2170, 2205, 2364, 2604, 2646, 2758, 2790, 2940, 2955, 3038, 3255, 3348, 3546, 3780, 3906, 3940, 4137, 4185, 4340, 4410, 4557, 5292, 5319, 5516, 5580, 5859, 5910, 6076, 6107, 6510, 6615, 6895, 7092, 7595, 7812, 8274, 8370, 8820, 8865, 9114, 9653, 9765, 10638, 11718, 11820, 12214, 12411, 13020, 13230, 13671, 13790, 15190, 16548, 16740, 17730, 18228, 18321, 19306, 19530, 20685, 21276, 22785, 23436, 24428, 24822, 26460, 26595, 27342, 27580, 28959, 29295, 30380, 30535, 35460, 36642, 37233, 38612, 39060, 41013, 41370, 42749, 45570, 48265, 49644, 53190, 54684, 54963, 57918, 58590, 61070, 62055, 68355, 73284, 74466, 82026, 82740, 85498, 86877, 91140, 91605, 96530, 106380, 109926, 115836, 117180, 122140, 124110, 128247, 136710, 144795, 148932, 164052, 164889, 170996, 173754, 183210, 186165, 193060, 205065, 213745, 219852, 248220, 256494, 260631, 273420, 274815, 289590, 299243, 329778, 347508, 366420, 372330, 384741, 410130, 427490, 434385, 512988, 521262, 549630, 579180, 598486, 641235, 659556, 744660, 769482, 820260, 824445, 854980, 868770, 897729, 1042524, 1099260, 1154223, 1196972, 1282470, 1303155, 1496215, 1538964, 1648890, 1737540, 1795458, 1923705, 2308446, 2564940, 2606310, 2693187, 2992430, 3297780, 3590916, 3847410, 4488645, 4616892, 5212620, 5386374, 5771115, 5984860, 7694820, 8079561, 8977290, 10772748, 11542230, 13465935, 16159122, 17954580, 23084460, 26931870, 32318244, 40397805, 53863740, 80795610, 161591220]

約数ペア:

[(1, 161591220), (2, 80795610), (3, 53863740), (4, 40397805), (5, 32318244), (6, 26931870), (7, 23084460), (9, 17954580), (10, 16159122), (12, 13465935), (14, 11542230), (15, 10772748), (18, 8977290), (20, 8079561), (21, 7694820), (27, 5984860), (28, 5771115), (30, 5386374), (31, 5212620), (35, 4616892), (36, 4488645), (42, 3847410), (45, 3590916), (49, 3297780), (54, 2992430), (60, 2693187), (62, 2606310), (63, 2564940), (70, 2308446), (84, 1923705), (90, 1795458), (93, 1737540), (98, 1648890), (105, 1538964), (108, 1496215), (124, 1303155), (126, 1282470), (135, 1196972), (140, 1154223), (147, 1099260), (155, 1042524), (180, 897729), (186, 868770), (189, 854980), (196, 824445), (197, 820260), (210, 769482), (217, 744660), (245, 659556), (252, 641235), (270, 598486), (279, 579180), (294, 549630), (310, 521262), (315, 512988), (372, 434385), (378, 427490), (394, 410130), (420, 384741), (434, 372330), (441, 366420), (465, 347508), (490, 329778), (540, 299243), (558, 289590), (588, 274815), (591, 273420), (620, 260631), (630, 256494), (651, 248220), (735, 219852), (756, 213745), (788, 205065), (837, 193060), (868, 186165), (882, 183210), (930, 173754), (945, 170996), (980, 164889), (985, 164052), (1085, 148932), (1116, 144795), (1182, 136710), (1260, 128247), (1302, 124110), (1323, 122140), (1379, 117180), (1395, 115836), (1470, 109926), (1519, 106380), (1674, 96530), (1764, 91605), (1773, 91140), (1860, 86877), (1890, 85498), (1953, 82740), (1970, 82026), (2170, 74466), (2205, 73284), (2364, 68355), (2604, 62055), (2646, 61070), (2758, 58590), (2790, 57918), (2940, 54963), (2955, 54684), (3038, 53190), (3255, 49644), (3348, 48265), (3546, 45570), (3780, 42749), (3906, 41370), (3940, 41013), (4137, 39060), (4185, 38612), (4340, 37233), (4410, 36642), (4557, 35460), (5292, 30535), (5319, 30380), (5516, 29295), (5580, 28959), (5859, 27580), (5910, 27342), (6076, 26595), (6107, 26460), (6510, 24822), (6615, 24428), (6895, 23436), (7092, 22785), (7595, 21276), (7812, 20685), (8274, 19530), (8370, 19306), (8820, 18321), (8865, 18228), (9114, 17730), (9653, 16740), (9765, 16548), (10638, 15190), (11718, 13790), (11820, 13671), (12214, 13230), (12411, 13020)]