81972120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{16661}}^1$

素因数の和:16716

約数の個数: 64

約数和(自身を含む): 251929440

約数和(自身を除く): 169957320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4920, 16661, 33322, 49983, 66644, 83305, 99966, 133288, 166610, 199932, 249915, 333220, 399864, 499830, 666440, 683101, 999660, 1366202, 1999320, 2049303, 2732404, 3415505, 4098606, 5464808, 6831010, 8197212, 10246515, 13662020, 16394424, 20493030, 27324040, 40986060, 81972120]

約数ペア:

[(1, 81972120), (2, 40986060), (3, 27324040), (4, 20493030), (5, 16394424), (6, 13662020), (8, 10246515), (10, 8197212), (12, 6831010), (15, 5464808), (20, 4098606), (24, 3415505), (30, 2732404), (40, 2049303), (41, 1999320), (60, 1366202), (82, 999660), (120, 683101), (123, 666440), (164, 499830), (205, 399864), (246, 333220), (328, 249915), (410, 199932), (492, 166610), (615, 133288), (820, 99966), (984, 83305), (1230, 66644), (1640, 49983), (2460, 33322), (4920, 16661)]