80865450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{2531}}^1$

素因数の和:2620

約数の個数: 72

約数和(自身を含む): 220405536

約数和(自身を除く): 139540086

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 71, 75, 90, 142, 150, 213, 225, 355, 426, 450, 639, 710, 1065, 1278, 1775, 2130, 2531, 3195, 3550, 5062, 5325, 6390, 7593, 10650, 12655, 15186, 15975, 22779, 25310, 31950, 37965, 45558, 63275, 75930, 113895, 126550, 179701, 189825, 227790, 359402, 379650, 539103, 569475, 898505, 1078206, 1138950, 1617309, 1797010, 2695515, 3234618, 4492525, 5391030, 8086545, 8985050, 13477575, 16173090, 26955150, 40432725, 80865450]

約数ペア:

[(1, 80865450), (2, 40432725), (3, 26955150), (5, 16173090), (6, 13477575), (9, 8985050), (10, 8086545), (15, 5391030), (18, 4492525), (25, 3234618), (30, 2695515), (45, 1797010), (50, 1617309), (71, 1138950), (75, 1078206), (90, 898505), (142, 569475), (150, 539103), (213, 379650), (225, 359402), (355, 227790), (426, 189825), (450, 179701), (639, 126550), (710, 113895), (1065, 75930), (1278, 63275), (1775, 45558), (2130, 37965), (2531, 31950), (3195, 25310), (3550, 22779), (5062, 15975), (5325, 15186), (6390, 12655), (7593, 10650)]