640147196

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{64453}}^1$

素因数の和:64661

約数の個数: 24

約数和(自身を含む): 1212766464

約数和(自身を除く): 572619268

約数列:

[1, 2, 4, 13, 26, 52, 191, 382, 764, 2483, 4966, 9932, 64453, 128906, 257812, 837889, 1675778, 3351556, 12310523, 24621046, 49242092, 160036799, 320073598, 640147196]

約数ペア:

[(1, 640147196), (2, 320073598), (4, 160036799), (13, 49242092), (26, 24621046), (52, 12310523), (191, 3351556), (382, 1675778), (764, 837889), (2483, 257812), (4966, 128906), (9932, 64453)]