628398428

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{161459}}^1$

素因数の和:161609

約数の個数: 24

約数和(自身を含む): 1265846400

約数和(自身を除く): 637447972

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 161459, 322918, 645836, 1130213, 2260426, 4520852, 22442801, 44885602, 89771204, 157099607, 314199214, 628398428]

約数ペア:

[(1, 628398428), (2, 314199214), (4, 157099607), (7, 89771204), (14, 44885602), (28, 22442801), (139, 4520852), (278, 2260426), (556, 1130213), (973, 645836), (1946, 322918), (3892, 161459)]