8471980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 19658016

約数和(自身を除く): 11186036

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 397, 485, 794, 970, 1067, 1588, 1940, 1985, 2134, 3970, 4268, 4367, 5335, 7940, 8734, 10670, 17468, 21340, 21835, 38509, 43670, 77018, 87340, 154036, 192545, 385090, 423599, 770180, 847198, 1694396, 2117995, 4235990, 8471980]

約数ペア:

[(1, 8471980), (2, 4235990), (4, 2117995), (5, 1694396), (10, 847198), (11, 770180), (20, 423599), (22, 385090), (44, 192545), (55, 154036), (97, 87340), (110, 77018), (194, 43670), (220, 38509), (388, 21835), (397, 21340), (485, 17468), (794, 10670), (970, 8734), (1067, 7940), (1588, 5335), (1940, 4367), (1985, 4268), (2134, 3970)]