31871790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:298

約数の個数: 96

約数和(自身を含む): 87946560

約数和(自身を除く): 56074770

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 89, 90, 115, 138, 173, 178, 207, 230, 267, 345, 346, 414, 445, 519, 534, 690, 801, 865, 890, 1035, 1038, 1335, 1557, 1602, 1730, 2047, 2070, 2595, 2670, 3114, 3979, 4005, 4094, 5190, 6141, 7785, 7958, 8010, 10235, 11937, 12282, 15397, 15570, 18423, 19895, 20470, 23874, 30705, 30794, 35811, 36846, 39790, 46191, 59685, 61410, 71622, 76985, 92115, 92382, 119370, 138573, 153970, 179055, 184230, 230955, 277146, 354131, 358110, 461910, 692865, 708262, 1062393, 1385730, 1770655, 2124786, 3187179, 3541310, 5311965, 6374358, 10623930, 15935895, 31871790]

約数ペア:

[(1, 31871790), (2, 15935895), (3, 10623930), (5, 6374358), (6, 5311965), (9, 3541310), (10, 3187179), (15, 2124786), (18, 1770655), (23, 1385730), (30, 1062393), (45, 708262), (46, 692865), (69, 461910), (89, 358110), (90, 354131), (115, 277146), (138, 230955), (173, 184230), (178, 179055), (207, 153970), (230, 138573), (267, 119370), (345, 92382), (346, 92115), (414, 76985), (445, 71622), (519, 61410), (534, 59685), (690, 46191), (801, 39790), (865, 36846), (890, 35811), (1035, 30794), (1038, 30705), (1335, 23874), (1557, 20470), (1602, 19895), (1730, 18423), (2047, 15570), (2070, 15397), (2595, 12282), (2670, 11937), (3114, 10235), (3979, 8010), (4005, 7958), (4094, 7785), (5190, 6141)]