318289648

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{641713}}^1$

素因数の和:641752

約数の個数: 20

約数和(自身を含む): 636580288

約数和(自身を除く): 318290640

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 641713, 1283426, 2566852, 5133704, 10267408, 19893103, 39786206, 79572412, 159144824, 318289648]

約数ペア:

[(1, 318289648), (2, 159144824), (4, 79572412), (8, 39786206), (16, 19893103), (31, 10267408), (62, 5133704), (124, 2566852), (248, 1283426), (496, 641713)]