816884020

素因数分解:

$2^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{307}}^1\times {\mathrm{571}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 1731457728

約数和(自身を除く): 914573708

約数列:

[1, 2, 4, 5, 10, 20, 233, 307, 466, 571, 614, 932, 1142, 1165, 1228, 1535, 2284, 2330, 2855, 3070, 4660, 5710, 6140, 11420, 71531, 133043, 143062, 175297, 266086, 286124, 350594, 357655, 532172, 665215, 701188, 715310, 876485, 1330430, 1430620, 1752970, 2660860, 3505940, 40844201, 81688402, 163376804, 204221005, 408442010, 816884020]

約数ペア:

[(1, 816884020), (2, 408442010), (4, 204221005), (5, 163376804), (10, 81688402), (20, 40844201), (233, 3505940), (307, 2660860), (466, 1752970), (571, 1430620), (614, 1330430), (932, 876485), (1142, 715310), (1165, 701188), (1228, 665215), (1535, 532172), (2284, 357655), (2330, 350594), (2855, 286124), (3070, 266086), (4660, 175297), (5710, 143062), (6140, 133043), (11420, 71531)]