209520520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{476183}}^1$

素因数の和:476205

約数の個数: 32

約数和(自身を含む): 514278720

約数和(自身を除く): 304758200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 476183, 952366, 1904732, 2380915, 3809464, 4761830, 5238013, 9523660, 10476026, 19047320, 20952052, 26190065, 41904104, 52380130, 104760260, 209520520]

約数ペア:

[(1, 209520520), (2, 104760260), (4, 52380130), (5, 41904104), (8, 26190065), (10, 20952052), (11, 19047320), (20, 10476026), (22, 9523660), (40, 5238013), (44, 4761830), (55, 3809464), (88, 2380915), (110, 1904732), (220, 952366), (440, 476183)]