261592020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{14389}}^1$

素因数の和:14505

約数の個数: 72

約数和(自身を含む): 801407880

約数和(自身を除く): 539815860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1212, 1515, 1818, 2020, 3030, 3636, 4545, 6060, 9090, 14389, 18180, 28778, 43167, 57556, 71945, 86334, 129501, 143890, 172668, 215835, 259002, 287780, 431670, 518004, 647505, 863340, 1295010, 1453289, 2590020, 2906578, 4359867, 5813156, 7266445, 8719734, 13079601, 14532890, 17439468, 21799335, 26159202, 29065780, 43598670, 52318404, 65398005, 87197340, 130796010, 261592020]

約数ペア:

[(1, 261592020), (2, 130796010), (3, 87197340), (4, 65398005), (5, 52318404), (6, 43598670), (9, 29065780), (10, 26159202), (12, 21799335), (15, 17439468), (18, 14532890), (20, 13079601), (30, 8719734), (36, 7266445), (45, 5813156), (60, 4359867), (90, 2906578), (101, 2590020), (180, 1453289), (202, 1295010), (303, 863340), (404, 647505), (505, 518004), (606, 431670), (909, 287780), (1010, 259002), (1212, 215835), (1515, 172668), (1818, 143890), (2020, 129501), (3030, 86334), (3636, 71945), (4545, 57556), (6060, 43167), (9090, 28778), (14389, 18180)]