238539420

素因数分解:

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

素因数の和:281

約数の個数: 216

約数和(自身を含む): 858809952

約数和(自身を除く): 620270532

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 197, 210, 217, 252, 279, 310, 315, 372, 394, 420, 434, 465, 558, 591, 620, 630, 651, 788, 868, 930, 961, 985, 1085, 1116, 1182, 1260, 1302, 1379, 1395, 1773, 1860, 1922, 1953, 1970, 2170, 2364, 2604, 2758, 2790, 2883, 2955, 3255, 3546, 3844, 3906, 3940, 4137, 4340, 4805, 5516, 5580, 5766, 5910, 6107, 6510, 6727, 6895, 7092, 7812, 8274, 8649, 8865, 9610, 9765, 11532, 11820, 12214, 12411, 13020, 13454, 13790, 14415, 16548, 17298, 17730, 18321, 19220, 19530, 20181, 20685, 24428, 24822, 26908, 27580, 28830, 30535, 33635, 34596, 35460, 36642, 39060, 40362, 41370, 42749, 43245, 49644, 54963, 57660, 60543, 61070, 62055, 67270, 73284, 80724, 82740, 85498, 86490, 91605, 100905, 109926, 121086, 122140, 124110, 128247, 134540, 170996, 172980, 183210, 189317, 201810, 213745, 219852, 242172, 248220, 256494, 274815, 302715, 366420, 378634, 384741, 403620, 427490, 512988, 549630, 567951, 605430, 641235, 757268, 769482, 854980, 946585, 1099260, 1135902, 1210860, 1282470, 1325219, 1538964, 1703853, 1893170, 1923705, 2271804, 2564940, 2650438, 2839755, 3407706, 3786340, 3847410, 3975657, 5300876, 5679510, 6626095, 6815412, 7694820, 7951314, 8519265, 11359020, 11926971, 13252190, 15902628, 17038530, 19878285, 23853942, 26504380, 34077060, 39756570, 47707884, 59634855, 79513140, 119269710, 238539420]

約数ペア:

[(1, 238539420), (2, 119269710), (3, 79513140), (4, 59634855), (5, 47707884), (6, 39756570), (7, 34077060), (9, 26504380), (10, 23853942), (12, 19878285), (14, 17038530), (15, 15902628), (18, 13252190), (20, 11926971), (21, 11359020), (28, 8519265), (30, 7951314), (31, 7694820), (35, 6815412), (36, 6626095), (42, 5679510), (45, 5300876), (60, 3975657), (62, 3847410), (63, 3786340), (70, 3407706), (84, 2839755), (90, 2650438), (93, 2564940), (105, 2271804), (124, 1923705), (126, 1893170), (140, 1703853), (155, 1538964), (180, 1325219), (186, 1282470), (197, 1210860), (210, 1135902), (217, 1099260), (252, 946585), (279, 854980), (310, 769482), (315, 757268), (372, 641235), (394, 605430), (420, 567951), (434, 549630), (465, 512988), (558, 427490), (591, 403620), (620, 384741), (630, 378634), (651, 366420), (788, 302715), (868, 274815), (930, 256494), (961, 248220), (985, 242172), (1085, 219852), (1116, 213745), (1182, 201810), (1260, 189317), (1302, 183210), (1379, 172980), (1395, 170996), (1773, 134540), (1860, 128247), (1922, 124110), (1953, 122140), (1970, 121086), (2170, 109926), (2364, 100905), (2604, 91605), (2758, 86490), (2790, 85498), (2883, 82740), (2955, 80724), (3255, 73284), (3546, 67270), (3844, 62055), (3906, 61070), (3940, 60543), (4137, 57660), (4340, 54963), (4805, 49644), (5516, 43245), (5580, 42749), (5766, 41370), (5910, 40362), (6107, 39060), (6510, 36642), (6727, 35460), (6895, 34596), (7092, 33635), (7812, 30535), (8274, 28830), (8649, 27580), (8865, 26908), (9610, 24822), (9765, 24428), (11532, 20685), (11820, 20181), (12214, 19530), (12411, 19220), (13020, 18321), (13454, 17730), (13790, 17298), (14415, 16548)]