320420760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:282

約数の個数: 256

約数和(自身を含む): 1129075200

約数和(自身を除く): 808654440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 17, 20, 22, 24, 30, 33, 34, 40, 44, 51, 55, 60, 66, 68, 85, 88, 102, 109, 110, 120, 131, 132, 136, 165, 170, 187, 204, 218, 220, 255, 262, 264, 327, 330, 340, 374, 393, 408, 436, 440, 510, 524, 545, 561, 654, 655, 660, 680, 748, 786, 872, 935, 1020, 1048, 1090, 1122, 1199, 1308, 1310, 1320, 1441, 1496, 1572, 1635, 1853, 1870, 1965, 2040, 2180, 2227, 2244, 2398, 2616, 2620, 2805, 2882, 3144, 3270, 3597, 3706, 3740, 3930, 4323, 4360, 4454, 4488, 4796, 5240, 5559, 5610, 5764, 5995, 6540, 6681, 7194, 7205, 7412, 7480, 7860, 8646, 8908, 9265, 9592, 11118, 11135, 11220, 11528, 11990, 13080, 13362, 14279, 14388, 14410, 14824, 15720, 17292, 17816, 17985, 18530, 20383, 21615, 22236, 22270, 22440, 23980, 24497, 26724, 27795, 28558, 28776, 28820, 33405, 34584, 35970, 37060, 40766, 42837, 43230, 44472, 44540, 47960, 48994, 53448, 55590, 57116, 57640, 61149, 66810, 71395, 71940, 73491, 74120, 81532, 85674, 86460, 89080, 97988, 101915, 111180, 114232, 122298, 122485, 133620, 142790, 143880, 146982, 157069, 163064, 171348, 172920, 195976, 203830, 214185, 222360, 242743, 244596, 244970, 267240, 285580, 293964, 305745, 314138, 342696, 367455, 407660, 428370, 471207, 485486, 489192, 489940, 571160, 587928, 611490, 628276, 728229, 734910, 785345, 815320, 856740, 942414, 970972, 979880, 1213715, 1222980, 1256552, 1456458, 1469820, 1570690, 1713480, 1884828, 1941944, 2356035, 2427430, 2445960, 2670173, 2912916, 2939640, 3141380, 3641145, 3769656, 4712070, 4854860, 5340346, 5825832, 6282760, 7282290, 8010519, 9424140, 9709720, 10680692, 13350865, 14564580, 16021038, 18848280, 21361384, 26701730, 29129160, 32042076, 40052595, 53403460, 64084152, 80105190, 106806920, 160210380, 320420760]

約数ペア:

[(1, 320420760), (2, 160210380), (3, 106806920), (4, 80105190), (5, 64084152), (6, 53403460), (8, 40052595), (10, 32042076), (11, 29129160), (12, 26701730), (15, 21361384), (17, 18848280), (20, 16021038), (22, 14564580), (24, 13350865), (30, 10680692), (33, 9709720), (34, 9424140), (40, 8010519), (44, 7282290), (51, 6282760), (55, 5825832), (60, 5340346), (66, 4854860), (68, 4712070), (85, 3769656), (88, 3641145), (102, 3141380), (109, 2939640), (110, 2912916), (120, 2670173), (131, 2445960), (132, 2427430), (136, 2356035), (165, 1941944), (170, 1884828), (187, 1713480), (204, 1570690), (218, 1469820), (220, 1456458), (255, 1256552), (262, 1222980), (264, 1213715), (327, 979880), (330, 970972), (340, 942414), (374, 856740), (393, 815320), (408, 785345), (436, 734910), (440, 728229), (510, 628276), (524, 611490), (545, 587928), (561, 571160), (654, 489940), (655, 489192), (660, 485486), (680, 471207), (748, 428370), (786, 407660), (872, 367455), (935, 342696), (1020, 314138), (1048, 305745), (1090, 293964), (1122, 285580), (1199, 267240), (1308, 244970), (1310, 244596), (1320, 242743), (1441, 222360), (1496, 214185), (1572, 203830), (1635, 195976), (1853, 172920), (1870, 171348), (1965, 163064), (2040, 157069), (2180, 146982), (2227, 143880), (2244, 142790), (2398, 133620), (2616, 122485), (2620, 122298), (2805, 114232), (2882, 111180), (3144, 101915), (3270, 97988), (3597, 89080), (3706, 86460), (3740, 85674), (3930, 81532), (4323, 74120), (4360, 73491), (4454, 71940), (4488, 71395), (4796, 66810), (5240, 61149), (5559, 57640), (5610, 57116), (5764, 55590), (5995, 53448), (6540, 48994), (6681, 47960), (7194, 44540), (7205, 44472), (7412, 43230), (7480, 42837), (7860, 40766), (8646, 37060), (8908, 35970), (9265, 34584), (9592, 33405), (11118, 28820), (11135, 28776), (11220, 28558), (11528, 27795), (11990, 26724), (13080, 24497), (13362, 23980), (14279, 22440), (14388, 22270), (14410, 22236), (14824, 21615), (15720, 20383), (17292, 18530), (17816, 17985)]