31819140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4111}}^1$

素因数の和:4169

約数の個数: 72

約数和(自身を含む): 98786688

約数和(自身を除く): 66967548

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 4111, 7740, 8222, 12333, 16444, 20555, 24666, 36999, 41110, 49332, 61665, 73998, 82220, 123330, 147996, 176773, 184995, 246660, 353546, 369990, 530319, 707092, 739980, 883865, 1060638, 1590957, 1767730, 2121276, 2651595, 3181914, 3535460, 5303190, 6363828, 7954785, 10606380, 15909570, 31819140]

約数ペア:

[(1, 31819140), (2, 15909570), (3, 10606380), (4, 7954785), (5, 6363828), (6, 5303190), (9, 3535460), (10, 3181914), (12, 2651595), (15, 2121276), (18, 1767730), (20, 1590957), (30, 1060638), (36, 883865), (43, 739980), (45, 707092), (60, 530319), (86, 369990), (90, 353546), (129, 246660), (172, 184995), (180, 176773), (215, 147996), (258, 123330), (387, 82220), (430, 73998), (516, 61665), (645, 49332), (774, 41110), (860, 36999), (1290, 24666), (1548, 20555), (1935, 16444), (2580, 12333), (3870, 8222), (4111, 7740)]