90242020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{21589}}^1$

素因数の和:21628

約数の個数: 48

約数和(自身を含む): 217627200

約数和(自身を除く): 127385180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 21589, 43178, 86356, 107945, 215890, 237479, 410191, 431780, 474958, 820382, 949916, 1187395, 1640764, 2050955, 2374790, 4101910, 4512101, 4749580, 8203820, 9024202, 18048404, 22560505, 45121010, 90242020]

約数ペア:

[(1, 90242020), (2, 45121010), (4, 22560505), (5, 18048404), (10, 9024202), (11, 8203820), (19, 4749580), (20, 4512101), (22, 4101910), (38, 2374790), (44, 2050955), (55, 1640764), (76, 1187395), (95, 949916), (110, 820382), (190, 474958), (209, 431780), (220, 410191), (380, 237479), (418, 215890), (836, 107945), (1045, 86356), (2090, 43178), (4180, 21589)]