399377272

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{100447}}^1$

素因数の和:100531

約数の個数: 32

約数和(自身を含む): 867870720

約数和(自身を除く): 468493448

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 100447, 200894, 401788, 703129, 803576, 1406258, 2812516, 5625032, 7131737, 14263474, 28526948, 49922159, 57053896, 99844318, 199688636, 399377272]

約数ペア:

[(1, 399377272), (2, 199688636), (4, 99844318), (7, 57053896), (8, 49922159), (14, 28526948), (28, 14263474), (56, 7131737), (71, 5625032), (142, 2812516), (284, 1406258), (497, 803576), (568, 703129), (994, 401788), (1988, 200894), (3976, 100447)]