7420840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1559}}^1$

素因数の和:1594

約数の個数: 64

約数和(自身を含む): 20217600

約数和(自身を除く): 12796760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 1559, 2380, 3118, 4760, 6236, 7795, 10913, 12472, 15590, 21826, 26503, 31180, 43652, 53006, 54565, 62360, 87304, 106012, 109130, 132515, 185521, 212024, 218260, 265030, 371042, 436520, 530060, 742084, 927605, 1060120, 1484168, 1855210, 3710420, 7420840]

約数ペア:

[(1, 7420840), (2, 3710420), (4, 1855210), (5, 1484168), (7, 1060120), (8, 927605), (10, 742084), (14, 530060), (17, 436520), (20, 371042), (28, 265030), (34, 218260), (35, 212024), (40, 185521), (56, 132515), (68, 109130), (70, 106012), (85, 87304), (119, 62360), (136, 54565), (140, 53006), (170, 43652), (238, 31180), (280, 26503), (340, 21826), (476, 15590), (595, 12472), (680, 10913), (952, 7795), (1190, 6236), (1559, 4760), (2380, 3118)]