201171440

素因数分解:

$2^4\times 5^1\times {\mathrm{641}}^1\times {\mathrm{3923}}^1$

素因数の和:4577

約数の個数: 40

約数和(自身を含む): 468572688

約数和(自身を除く): 267401248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641, 1282, 2564, 3205, 3923, 5128, 6410, 7846, 10256, 12820, 15692, 19615, 25640, 31384, 39230, 51280, 62768, 78460, 156920, 313840, 2514643, 5029286, 10058572, 12573215, 20117144, 25146430, 40234288, 50292860, 100585720, 201171440]

約数ペア:

[(1, 201171440), (2, 100585720), (4, 50292860), (5, 40234288), (8, 25146430), (10, 20117144), (16, 12573215), (20, 10058572), (40, 5029286), (80, 2514643), (641, 313840), (1282, 156920), (2564, 78460), (3205, 62768), (3923, 51280), (5128, 39230), (6410, 31384), (7846, 25640), (10256, 19615), (12820, 15692)]