25002440

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1997}}^1$

素因数の和:2321

約数の個数: 32

約数和(自身を含む): 56463480

約数和(自身を除く): 31461040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 1997, 2504, 3130, 3994, 6260, 7988, 9985, 12520, 15976, 19970, 39940, 79880, 625061, 1250122, 2500244, 3125305, 5000488, 6250610, 12501220, 25002440]

約数ペア:

[(1, 25002440), (2, 12501220), (4, 6250610), (5, 5000488), (8, 3125305), (10, 2500244), (20, 1250122), (40, 625061), (313, 79880), (626, 39940), (1252, 19970), (1565, 15976), (1997, 12520), (2504, 9985), (3130, 7988), (3994, 6260)]