201478640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{228953}}^1$

素因数の和:228977

約数の個数: 40

約数和(自身を含む): 511025328

約数和(自身を除く): 309546688

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 228953, 457906, 915812, 1144765, 1831624, 2289530, 2518483, 3663248, 4579060, 5036966, 9158120, 10073932, 12592415, 18316240, 20147864, 25184830, 40295728, 50369660, 100739320, 201478640]

約数ペア:

[(1, 201478640), (2, 100739320), (4, 50369660), (5, 40295728), (8, 25184830), (10, 20147864), (11, 18316240), (16, 12592415), (20, 10073932), (22, 9158120), (40, 5036966), (44, 4579060), (55, 3663248), (80, 2518483), (88, 2289530), (110, 1831624), (176, 1144765), (220, 915812), (440, 457906), (880, 228953)]