25140620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73943}}^1$

素因数の和:73969

約数の個数: 24

約数和(自身を含む): 55901664

約数和(自身を除く): 30761044

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 73943, 147886, 295772, 369715, 739430, 1257031, 1478860, 2514062, 5028124, 6285155, 12570310, 25140620]

約数ペア:

[(1, 25140620), (2, 12570310), (4, 6285155), (5, 5028124), (10, 2514062), (17, 1478860), (20, 1257031), (34, 739430), (68, 369715), (85, 295772), (170, 147886), (340, 73943)]