666380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 1651104

約数和(自身を除く): 984724

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 233, 260, 286, 466, 572, 715, 932, 1165, 1430, 2330, 2563, 2860, 3029, 4660, 5126, 6058, 10252, 12116, 12815, 15145, 25630, 30290, 33319, 51260, 60580, 66638, 133276, 166595, 333190, 666380]

約数ペア:

[(1, 666380), (2, 333190), (4, 166595), (5, 133276), (10, 66638), (11, 60580), (13, 51260), (20, 33319), (22, 30290), (26, 25630), (44, 15145), (52, 12815), (55, 12116), (65, 10252), (110, 6058), (130, 5126), (143, 4660), (220, 3029), (233, 2860), (260, 2563), (286, 2330), (466, 1430), (572, 1165), (715, 932)]