649863940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{72047}}^1$

素因数の和:72108

約数の個数: 48

約数和(自身を含む): 1525112064

約数和(自身を除く): 875248124

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9020, 72047, 144094, 288188, 360235, 720470, 792517, 1440940, 1585034, 2953927, 3170068, 3962585, 5907854, 7925170, 11815708, 14769635, 15850340, 29539270, 32493197, 59078540, 64986394, 129972788, 162465985, 324931970, 649863940]

約数ペア:

[(1, 649863940), (2, 324931970), (4, 162465985), (5, 129972788), (10, 64986394), (11, 59078540), (20, 32493197), (22, 29539270), (41, 15850340), (44, 14769635), (55, 11815708), (82, 7925170), (110, 5907854), (164, 3962585), (205, 3170068), (220, 2953927), (410, 1585034), (451, 1440940), (820, 792517), (902, 720470), (1804, 360235), (2255, 288188), (4510, 144094), (9020, 72047)]