31807100

素因数分解:

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

素因数の和:639

約数の個数: 72

約数和(自身を含む): 76193040

約数和(自身を除く): 44385940

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 43, 50, 52, 65, 86, 100, 130, 172, 215, 260, 325, 430, 559, 569, 650, 860, 1075, 1118, 1138, 1300, 2150, 2236, 2276, 2795, 2845, 4300, 5590, 5690, 7397, 11180, 11380, 13975, 14225, 14794, 24467, 27950, 28450, 29588, 36985, 48934, 55900, 56900, 73970, 97868, 122335, 147940, 184925, 244670, 318071, 369850, 489340, 611675, 636142, 739700, 1223350, 1272284, 1590355, 2446700, 3180710, 6361420, 7951775, 15903550, 31807100]

約数ペア:

[(1, 31807100), (2, 15903550), (4, 7951775), (5, 6361420), (10, 3180710), (13, 2446700), (20, 1590355), (25, 1272284), (26, 1223350), (43, 739700), (50, 636142), (52, 611675), (65, 489340), (86, 369850), (100, 318071), (130, 244670), (172, 184925), (215, 147940), (260, 122335), (325, 97868), (430, 73970), (559, 56900), (569, 55900), (650, 48934), (860, 36985), (1075, 29588), (1118, 28450), (1138, 27950), (1300, 24467), (2150, 14794), (2236, 14225), (2276, 13975), (2795, 11380), (2845, 11180), (4300, 7397), (5590, 5690)]