644774396

素因数分解:

$2^2\times 7^1\times {\mathrm{2309}}^1\times {\mathrm{9973}}^1$

素因数の和:12293

約数の個数: 24

約数和(自身を含む): 1290236640

約数和(自身を除く): 645462244

約数列:

[1, 2, 4, 7, 14, 28, 2309, 4618, 9236, 9973, 16163, 19946, 32326, 39892, 64652, 69811, 139622, 279244, 23027657, 46055314, 92110628, 161193599, 322387198, 644774396]

約数ペア:

[(1, 644774396), (2, 322387198), (4, 161193599), (7, 92110628), (14, 46055314), (28, 23027657), (2309, 279244), (4618, 139622), (9236, 69811), (9973, 64652), (16163, 39892), (19946, 32326)]