1321354920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{647723}}^1$

素因数の和:647754

約数の個数: 64

約数和(自身を含む): 4197251520

約数和(自身を除く): 2875896600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 647723, 1295446, 1943169, 2590892, 3238615, 3886338, 5181784, 6477230, 7772676, 9715845, 11011291, 12954460, 15545352, 19431690, 22022582, 25908920, 33033873, 38863380, 44045164, 55056455, 66067746, 77726760, 88090328, 110112910, 132135492, 165169365, 220225820, 264270984, 330338730, 440451640, 660677460, 1321354920]

約数ペア:

[(1, 1321354920), (2, 660677460), (3, 440451640), (4, 330338730), (5, 264270984), (6, 220225820), (8, 165169365), (10, 132135492), (12, 110112910), (15, 88090328), (17, 77726760), (20, 66067746), (24, 55056455), (30, 44045164), (34, 38863380), (40, 33033873), (51, 25908920), (60, 22022582), (68, 19431690), (85, 15545352), (102, 12954460), (120, 11011291), (136, 9715845), (170, 7772676), (204, 6477230), (255, 5181784), (340, 3886338), (408, 3238615), (510, 2590892), (680, 1943169), (1020, 1295446), (2040, 647723)]