80517840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:357

約数の個数: 160

約数和(自身を含む): 272232576

約数和(自身を除く): 191714736

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 131, 156, 195, 197, 208, 240, 260, 262, 312, 390, 393, 394, 520, 524, 591, 624, 655, 780, 786, 788, 985, 1040, 1048, 1182, 1310, 1560, 1572, 1576, 1703, 1965, 1970, 2096, 2364, 2561, 2620, 2955, 3120, 3144, 3152, 3406, 3930, 3940, 4728, 5109, 5122, 5240, 5910, 6288, 6812, 7683, 7860, 7880, 8515, 9456, 10218, 10244, 10480, 11820, 12805, 13624, 15366, 15720, 15760, 17030, 20436, 20488, 23640, 25545, 25610, 25807, 27248, 30732, 31440, 34060, 38415, 40872, 40976, 47280, 51090, 51220, 51614, 61464, 68120, 76830, 77421, 81744, 102180, 102440, 103228, 122928, 129035, 136240, 153660, 154842, 204360, 204880, 206456, 258070, 307320, 309684, 335491, 387105, 408720, 412912, 516140, 614640, 619368, 670982, 774210, 1006473, 1032280, 1238736, 1341964, 1548420, 1677455, 2012946, 2064560, 2683928, 3096840, 3354910, 4025892, 5032365, 5367856, 6193680, 6709820, 8051784, 10064730, 13419640, 16103568, 20129460, 26839280, 40258920, 80517840]

約数ペア:

[(1, 80517840), (2, 40258920), (3, 26839280), (4, 20129460), (5, 16103568), (6, 13419640), (8, 10064730), (10, 8051784), (12, 6709820), (13, 6193680), (15, 5367856), (16, 5032365), (20, 4025892), (24, 3354910), (26, 3096840), (30, 2683928), (39, 2064560), (40, 2012946), (48, 1677455), (52, 1548420), (60, 1341964), (65, 1238736), (78, 1032280), (80, 1006473), (104, 774210), (120, 670982), (130, 619368), (131, 614640), (156, 516140), (195, 412912), (197, 408720), (208, 387105), (240, 335491), (260, 309684), (262, 307320), (312, 258070), (390, 206456), (393, 204880), (394, 204360), (520, 154842), (524, 153660), (591, 136240), (624, 129035), (655, 122928), (780, 103228), (786, 102440), (788, 102180), (985, 81744), (1040, 77421), (1048, 76830), (1182, 68120), (1310, 61464), (1560, 51614), (1572, 51220), (1576, 51090), (1703, 47280), (1965, 40976), (1970, 40872), (2096, 38415), (2364, 34060), (2561, 31440), (2620, 30732), (2955, 27248), (3120, 25807), (3144, 25610), (3152, 25545), (3406, 23640), (3930, 20488), (3940, 20436), (4728, 17030), (5109, 15760), (5122, 15720), (5240, 15366), (5910, 13624), (6288, 12805), (6812, 11820), (7683, 10480), (7860, 10244), (7880, 10218), (8515, 9456)]