31215150

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{977}}^1$

素因数の和:1066

約数の個数: 72

約数和(自身を含む): 85132944

約数和(自身を除く): 53917794

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, 977, 1065, 1278, 1775, 1954, 2130, 2931, 3195, 3550, 4885, 5325, 5862, 6390, 8793, 9770, 10650, 14655, 15975, 17586, 24425, 29310, 31950, 43965, 48850, 69367, 73275, 87930, 138734, 146550, 208101, 219825, 346835, 416202, 439650, 624303, 693670, 1040505, 1248606, 1734175, 2081010, 3121515, 3468350, 5202525, 6243030, 10405050, 15607575, 31215150]

約数ペア:

[(1, 31215150), (2, 15607575), (3, 10405050), (5, 6243030), (6, 5202525), (9, 3468350), (10, 3121515), (15, 2081010), (18, 1734175), (25, 1248606), (30, 1040505), (45, 693670), (50, 624303), (71, 439650), (75, 416202), (90, 346835), (142, 219825), (150, 208101), (213, 146550), (225, 138734), (355, 87930), (426, 73275), (450, 69367), (639, 48850), (710, 43965), (977, 31950), (1065, 29310), (1278, 24425), (1775, 17586), (1954, 15975), (2130, 14655), (2931, 10650), (3195, 9770), (3550, 8793), (4885, 6390), (5325, 5862)]