31149560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1619}}^1$

素因数の和:1680

約数の個数: 64

約数和(自身を含む): 77565600

約数和(自身を除く): 46416040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 1480, 1619, 1924, 2405, 3238, 3848, 4810, 6476, 8095, 9620, 12952, 16190, 19240, 21047, 32380, 42094, 59903, 64760, 84188, 105235, 119806, 168376, 210470, 239612, 299515, 420940, 479224, 599030, 778739, 841880, 1198060, 1557478, 2396120, 3114956, 3893695, 6229912, 7787390, 15574780, 31149560]

約数ペア:

[(1, 31149560), (2, 15574780), (4, 7787390), (5, 6229912), (8, 3893695), (10, 3114956), (13, 2396120), (20, 1557478), (26, 1198060), (37, 841880), (40, 778739), (52, 599030), (65, 479224), (74, 420940), (104, 299515), (130, 239612), (148, 210470), (185, 168376), (260, 119806), (296, 105235), (370, 84188), (481, 64760), (520, 59903), (740, 42094), (962, 32380), (1480, 21047), (1619, 19240), (1924, 16190), (2405, 12952), (3238, 9620), (3848, 8095), (4810, 6476)]