221414920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{1471}}^1$

素因数の和:1606

約数の個数: 64

約数和(自身を含む): 515082240

約数和(自身を除く): 293667320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 71, 106, 142, 212, 265, 284, 355, 424, 530, 568, 710, 1060, 1420, 1471, 2120, 2840, 2942, 3763, 5884, 7355, 7526, 11768, 14710, 15052, 18815, 29420, 30104, 37630, 58840, 75260, 77963, 104441, 150520, 155926, 208882, 311852, 389815, 417764, 522205, 623704, 779630, 835528, 1044410, 1559260, 2088820, 3118520, 4177640, 5535373, 11070746, 22141492, 27676865, 44282984, 55353730, 110707460, 221414920]

約数ペア:

[(1, 221414920), (2, 110707460), (4, 55353730), (5, 44282984), (8, 27676865), (10, 22141492), (20, 11070746), (40, 5535373), (53, 4177640), (71, 3118520), (106, 2088820), (142, 1559260), (212, 1044410), (265, 835528), (284, 779630), (355, 623704), (424, 522205), (530, 417764), (568, 389815), (710, 311852), (1060, 208882), (1420, 155926), (1471, 150520), (2120, 104441), (2840, 77963), (2942, 75260), (3763, 58840), (5884, 37630), (7355, 30104), (7526, 29420), (11768, 18815), (14710, 15052)]