1289456

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{397}}^1$

素因数の和:441

約数の個数: 40

約数和(自身を含む): 2961120

約数和(自身を除く): 1671664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 397, 406, 464, 794, 812, 1588, 1624, 2779, 3176, 3248, 5558, 6352, 11116, 11513, 22232, 23026, 44464, 46052, 80591, 92104, 161182, 184208, 322364, 644728, 1289456]

約数ペア:

[(1, 1289456), (2, 644728), (4, 322364), (7, 184208), (8, 161182), (14, 92104), (16, 80591), (28, 46052), (29, 44464), (56, 23026), (58, 22232), (112, 11513), (116, 11116), (203, 6352), (232, 5558), (397, 3248), (406, 3176), (464, 2779), (794, 1624), (812, 1588)]