81179150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^3\times {\mathrm{739}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 163791600

約数和(自身を除く): 82612450

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 169, 325, 338, 650, 739, 845, 1478, 1690, 2197, 3695, 4225, 4394, 7390, 8450, 9607, 10985, 18475, 19214, 21970, 36950, 48035, 54925, 96070, 109850, 124891, 240175, 249782, 480350, 624455, 1248910, 1623583, 3122275, 3247166, 6244550, 8117915, 16235830, 40589575, 81179150]

約数ペア:

[(1, 81179150), (2, 40589575), (5, 16235830), (10, 8117915), (13, 6244550), (25, 3247166), (26, 3122275), (50, 1623583), (65, 1248910), (130, 624455), (169, 480350), (325, 249782), (338, 240175), (650, 124891), (739, 109850), (845, 96070), (1478, 54925), (1690, 48035), (2197, 36950), (3695, 21970), (4225, 19214), (4394, 18475), (7390, 10985), (8450, 9607)]