15770920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{491}}^1$

素因数の和:586

約数の個数: 64

約数和(自身を含む): 39320640

約数和(自身を除く): 23549720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 73, 88, 110, 146, 220, 292, 365, 440, 491, 584, 730, 803, 982, 1460, 1606, 1964, 2455, 2920, 3212, 3928, 4015, 4910, 5401, 6424, 8030, 9820, 10802, 16060, 19640, 21604, 27005, 32120, 35843, 43208, 54010, 71686, 108020, 143372, 179215, 216040, 286744, 358430, 394273, 716860, 788546, 1433720, 1577092, 1971365, 3154184, 3942730, 7885460, 15770920]

約数ペア:

[(1, 15770920), (2, 7885460), (4, 3942730), (5, 3154184), (8, 1971365), (10, 1577092), (11, 1433720), (20, 788546), (22, 716860), (40, 394273), (44, 358430), (55, 286744), (73, 216040), (88, 179215), (110, 143372), (146, 108020), (220, 71686), (292, 54010), (365, 43208), (440, 35843), (491, 32120), (584, 27005), (730, 21604), (803, 19640), (982, 16060), (1460, 10802), (1606, 9820), (1964, 8030), (2455, 6424), (2920, 5401), (3212, 4910), (3928, 4015)]