131172280

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{5197}}^1$

素因数の和:5839

約数の個数: 32

約数和(自身を含む): 295662240

約数和(自身を除く): 164489960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 2524, 3155, 5048, 5197, 6310, 10394, 12620, 20788, 25240, 25985, 41576, 51970, 103940, 207880, 3279307, 6558614, 13117228, 16396535, 26234456, 32793070, 65586140, 131172280]

約数ペア:

[(1, 131172280), (2, 65586140), (4, 32793070), (5, 26234456), (8, 16396535), (10, 13117228), (20, 6558614), (40, 3279307), (631, 207880), (1262, 103940), (2524, 51970), (3155, 41576), (5048, 25985), (5197, 25240), (6310, 20788), (10394, 12620)]