8151880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 20321280

約数和(自身を除く): 12169400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 97, 110, 191, 194, 220, 382, 388, 440, 485, 764, 776, 955, 970, 1067, 1528, 1910, 1940, 2101, 2134, 3820, 3880, 4202, 4268, 5335, 7640, 8404, 8536, 10505, 10670, 16808, 18527, 21010, 21340, 37054, 42020, 42680, 74108, 84040, 92635, 148216, 185270, 203797, 370540, 407594, 741080, 815188, 1018985, 1630376, 2037970, 4075940, 8151880]

約数ペア:

[(1, 8151880), (2, 4075940), (4, 2037970), (5, 1630376), (8, 1018985), (10, 815188), (11, 741080), (20, 407594), (22, 370540), (40, 203797), (44, 185270), (55, 148216), (88, 92635), (97, 84040), (110, 74108), (191, 42680), (194, 42020), (220, 37054), (382, 21340), (388, 21010), (440, 18527), (485, 16808), (764, 10670), (776, 10505), (955, 8536), (970, 8404), (1067, 7640), (1528, 5335), (1910, 4268), (1940, 4202), (2101, 3880), (2134, 3820)]