80521380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1019}}^1$

素因数の和:1473

約数の個数: 72

約数和(自身を含む): 245044800

約数和(自身を除く): 164523420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 439, 878, 1019, 1317, 1756, 2038, 2195, 2634, 3057, 3951, 4076, 4390, 5095, 5268, 6114, 6585, 7902, 8780, 9171, 10190, 12228, 13170, 15285, 15804, 18342, 19755, 20380, 26340, 30570, 36684, 39510, 45855, 61140, 79020, 91710, 183420, 447341, 894682, 1342023, 1789364, 2236705, 2684046, 4026069, 4473410, 5368092, 6710115, 8052138, 8946820, 13420230, 16104276, 20130345, 26840460, 40260690, 80521380]

約数ペア:

[(1, 80521380), (2, 40260690), (3, 26840460), (4, 20130345), (5, 16104276), (6, 13420230), (9, 8946820), (10, 8052138), (12, 6710115), (15, 5368092), (18, 4473410), (20, 4026069), (30, 2684046), (36, 2236705), (45, 1789364), (60, 1342023), (90, 894682), (180, 447341), (439, 183420), (878, 91710), (1019, 79020), (1317, 61140), (1756, 45855), (2038, 39510), (2195, 36684), (2634, 30570), (3057, 26340), (3951, 20380), (4076, 19755), (4390, 18342), (5095, 15804), (5268, 15285), (6114, 13170), (6585, 12228), (7902, 10190), (8780, 9171)]