90511880

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{28643}}^1$

素因数の和:28733

約数の個数: 32

約数和(自身を含む): 206236800

約数和(自身を除く): 115724920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 28643, 57286, 114572, 143215, 229144, 286430, 572860, 1145720, 2262797, 4525594, 9051188, 11313985, 18102376, 22627970, 45255940, 90511880]

約数ペア:

[(1, 90511880), (2, 45255940), (4, 22627970), (5, 18102376), (8, 11313985), (10, 9051188), (20, 4525594), (40, 2262797), (79, 1145720), (158, 572860), (316, 286430), (395, 229144), (632, 143215), (790, 114572), (1580, 57286), (3160, 28643)]