87901120

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8861}}^1$

素因数の和:8909

約数の個数: 56

約数和(自身を含む): 216091008

約数和(自身を除く): 128189888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 8861, 9920, 17722, 35444, 44305, 70888, 88610, 141776, 177220, 274691, 283552, 354440, 549382, 567104, 708880, 1098764, 1373455, 1417760, 2197528, 2746910, 2835520, 4395056, 5493820, 8790112, 10987640, 17580224, 21975280, 43950560, 87901120]

約数ペア:

[(1, 87901120), (2, 43950560), (4, 21975280), (5, 17580224), (8, 10987640), (10, 8790112), (16, 5493820), (20, 4395056), (31, 2835520), (32, 2746910), (40, 2197528), (62, 1417760), (64, 1373455), (80, 1098764), (124, 708880), (155, 567104), (160, 549382), (248, 354440), (310, 283552), (320, 274691), (496, 177220), (620, 141776), (992, 88610), (1240, 70888), (1984, 44305), (2480, 35444), (4960, 17722), (8861, 9920)]