854440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{521}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 1973160

約数和(自身を除く): 1118720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 521, 820, 1042, 1640, 2084, 2605, 4168, 5210, 10420, 20840, 21361, 42722, 85444, 106805, 170888, 213610, 427220, 854440]

約数ペア:

[(1, 854440), (2, 427220), (4, 213610), (5, 170888), (8, 106805), (10, 85444), (20, 42722), (40, 21361), (41, 20840), (82, 10420), (164, 5210), (205, 4168), (328, 2605), (410, 2084), (521, 1640), (820, 1042)]