201631520

素因数分解:

$2^5\times 5^1\times {\mathrm{571}}^1\times {\mathrm{2207}}^1$

素因数の和:2793

約数の個数: 48

約数和(自身を含む): 477404928

約数和(自身を除く): 275773408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 571, 1142, 2207, 2284, 2855, 4414, 4568, 5710, 8828, 9136, 11035, 11420, 17656, 18272, 22070, 22840, 35312, 44140, 45680, 70624, 88280, 91360, 176560, 353120, 1260197, 2520394, 5040788, 6300985, 10081576, 12601970, 20163152, 25203940, 40326304, 50407880, 100815760, 201631520]

約数ペア:

[(1, 201631520), (2, 100815760), (4, 50407880), (5, 40326304), (8, 25203940), (10, 20163152), (16, 12601970), (20, 10081576), (32, 6300985), (40, 5040788), (80, 2520394), (160, 1260197), (571, 353120), (1142, 176560), (2207, 91360), (2284, 88280), (2855, 70624), (4414, 45680), (4568, 44140), (5710, 35312), (8828, 22840), (9136, 22070), (11035, 18272), (11420, 17656)]