208486520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{473833}}^1$

素因数の和:473855

約数の個数: 32

約数和(自身を含む): 511740720

約数和(自身を除く): 303254200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 473833, 947666, 1895332, 2369165, 3790664, 4738330, 5212163, 9476660, 10424326, 18953320, 20848652, 26060815, 41697304, 52121630, 104243260, 208486520]

約数ペア:

[(1, 208486520), (2, 104243260), (4, 52121630), (5, 41697304), (8, 26060815), (10, 20848652), (11, 18953320), (20, 10424326), (22, 9476660), (40, 5212163), (44, 4738330), (55, 3790664), (88, 2369165), (110, 1895332), (220, 947666), (440, 473833)]