25445680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:638

約数の個数: 80

約数和(自身を含む): 65308320

約数和(自身を除く): 39862640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 569, 688, 860, 1040, 1118, 1138, 1720, 2236, 2276, 2795, 2845, 3440, 4472, 4552, 5590, 5690, 7397, 8944, 9104, 11180, 11380, 14794, 22360, 22760, 24467, 29588, 36985, 44720, 45520, 48934, 59176, 73970, 97868, 118352, 122335, 147940, 195736, 244670, 295880, 318071, 391472, 489340, 591760, 636142, 978680, 1272284, 1590355, 1957360, 2544568, 3180710, 5089136, 6361420, 12722840, 25445680]

約数ペア:

[(1, 25445680), (2, 12722840), (4, 6361420), (5, 5089136), (8, 3180710), (10, 2544568), (13, 1957360), (16, 1590355), (20, 1272284), (26, 978680), (40, 636142), (43, 591760), (52, 489340), (65, 391472), (80, 318071), (86, 295880), (104, 244670), (130, 195736), (172, 147940), (208, 122335), (215, 118352), (260, 97868), (344, 73970), (430, 59176), (520, 48934), (559, 45520), (569, 44720), (688, 36985), (860, 29588), (1040, 24467), (1118, 22760), (1138, 22360), (1720, 14794), (2236, 11380), (2276, 11180), (2795, 9104), (2845, 8944), (3440, 7397), (4472, 5690), (4552, 5590)]