66670420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1619}}^1$

素因数の和:1728

約数の個数: 48

約数和(自身を含む): 146966400

約数和(自身を除く): 80295980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 284, 290, 355, 580, 710, 1420, 1619, 2059, 3238, 4118, 6476, 8095, 8236, 10295, 16190, 20590, 32380, 41180, 46951, 93902, 114949, 187804, 229898, 234755, 459796, 469510, 574745, 939020, 1149490, 2298980, 3333521, 6667042, 13334084, 16667605, 33335210, 66670420]

約数ペア:

[(1, 66670420), (2, 33335210), (4, 16667605), (5, 13334084), (10, 6667042), (20, 3333521), (29, 2298980), (58, 1149490), (71, 939020), (116, 574745), (142, 469510), (145, 459796), (284, 234755), (290, 229898), (355, 187804), (580, 114949), (710, 93902), (1420, 46951), (1619, 41180), (2059, 32380), (3238, 20590), (4118, 16190), (6476, 10295), (8095, 8236)]