72478460

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{33247}}^1$

素因数の和:33365

約数の個数: 24

約数和(自身を含む): 153605760

約数和(自身を除く): 81127300

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 33247, 66494, 132988, 166235, 332470, 664940, 3623923, 7247846, 14495692, 18119615, 36239230, 72478460]

約数ペア:

[(1, 72478460), (2, 36239230), (4, 18119615), (5, 14495692), (10, 7247846), (20, 3623923), (109, 664940), (218, 332470), (436, 166235), (545, 132988), (1090, 66494), (2180, 33247)]