31269680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:414

約数の個数: 80

約数和(自身を含む): 79307424

約数和(自身を除く): 48037744

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 107, 130, 208, 214, 260, 281, 428, 520, 535, 562, 856, 1040, 1070, 1124, 1391, 1405, 1712, 2140, 2248, 2782, 2810, 3653, 4280, 4496, 5564, 5620, 6955, 7306, 8560, 11128, 11240, 13910, 14612, 18265, 22256, 22480, 27820, 29224, 30067, 36530, 55640, 58448, 60134, 73060, 111280, 120268, 146120, 150335, 240536, 292240, 300670, 390871, 481072, 601340, 781742, 1202680, 1563484, 1954355, 2405360, 3126968, 3908710, 6253936, 7817420, 15634840, 31269680]

約数ペア:

[(1, 31269680), (2, 15634840), (4, 7817420), (5, 6253936), (8, 3908710), (10, 3126968), (13, 2405360), (16, 1954355), (20, 1563484), (26, 1202680), (40, 781742), (52, 601340), (65, 481072), (80, 390871), (104, 300670), (107, 292240), (130, 240536), (208, 150335), (214, 146120), (260, 120268), (281, 111280), (428, 73060), (520, 60134), (535, 58448), (562, 55640), (856, 36530), (1040, 30067), (1070, 29224), (1124, 27820), (1391, 22480), (1405, 22256), (1712, 18265), (2140, 14612), (2248, 13910), (2782, 11240), (2810, 11128), (3653, 8560), (4280, 7306), (4496, 6955), (5564, 5620)]