90639880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{6277}}^1$

素因数の和:6326

約数の個数: 48

約数和(自身を含む): 215272620

約数和(自身を除く): 124632740

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3610, 6277, 7220, 12554, 14440, 25108, 31385, 50216, 62770, 119263, 125540, 238526, 251080, 477052, 596315, 954104, 1192630, 2265997, 2385260, 4531994, 4770520, 9063988, 11329985, 18127976, 22659970, 45319940, 90639880]

約数ペア:

[(1, 90639880), (2, 45319940), (4, 22659970), (5, 18127976), (8, 11329985), (10, 9063988), (19, 4770520), (20, 4531994), (38, 2385260), (40, 2265997), (76, 1192630), (95, 954104), (152, 596315), (190, 477052), (361, 251080), (380, 238526), (722, 125540), (760, 119263), (1444, 62770), (1805, 50216), (2888, 31385), (3610, 25108), (6277, 14440), (7220, 12554)]