90003980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{11057}}^1$

素因数の和:11114

約数の個数: 48

約数和(自身を含む): 211782816

約数和(自身を除く): 121778836

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 4070, 8140, 11057, 22114, 44228, 55285, 110570, 121627, 221140, 243254, 409109, 486508, 608135, 818218, 1216270, 1636436, 2045545, 2432540, 4091090, 4500199, 8182180, 9000398, 18000796, 22500995, 45001990, 90003980]

約数ペア:

[(1, 90003980), (2, 45001990), (4, 22500995), (5, 18000796), (10, 9000398), (11, 8182180), (20, 4500199), (22, 4091090), (37, 2432540), (44, 2045545), (55, 1636436), (74, 1216270), (110, 818218), (148, 608135), (185, 486508), (220, 409109), (370, 243254), (407, 221140), (740, 121627), (814, 110570), (1628, 55285), (2035, 44228), (4070, 22114), (8140, 11057)]