639229276

素因数分解:

$2^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1\times {\mathrm{617}}^1$

素因数の和:1018

約数の個数: 48

約数和(自身を含む): 1294062336

約数和(自身を除く): 654833060

約数列:

[1, 2, 4, 7, 14, 28, 163, 227, 326, 454, 617, 652, 908, 1141, 1234, 1589, 2282, 2468, 3178, 4319, 4564, 6356, 8638, 17276, 37001, 74002, 100571, 140059, 148004, 201142, 259007, 280118, 402284, 518014, 560236, 703997, 980413, 1036028, 1407994, 1960826, 2815988, 3921652, 22829617, 45659234, 91318468, 159807319, 319614638, 639229276]

約数ペア:

[(1, 639229276), (2, 319614638), (4, 159807319), (7, 91318468), (14, 45659234), (28, 22829617), (163, 3921652), (227, 2815988), (326, 1960826), (454, 1407994), (617, 1036028), (652, 980413), (908, 703997), (1141, 560236), (1234, 518014), (1589, 402284), (2282, 280118), (2468, 259007), (3178, 201142), (4319, 148004), (4564, 140059), (6356, 100571), (8638, 74002), (17276, 37001)]