42487940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:309

約数の個数: 72

約数和(自身を含む): 99631896

約数和(自身を除く): 57143956

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 121, 181, 194, 220, 242, 362, 388, 484, 485, 605, 724, 905, 970, 1067, 1210, 1810, 1940, 1991, 2134, 2420, 3620, 3982, 4268, 5335, 7964, 9955, 10670, 11737, 17557, 19910, 21340, 21901, 23474, 35114, 39820, 43802, 46948, 58685, 70228, 87604, 87785, 109505, 117370, 175570, 193127, 219010, 234740, 351140, 386254, 438020, 772508, 965635, 1931270, 2124397, 3862540, 4248794, 8497588, 10621985, 21243970, 42487940]

約数ペア:

[(1, 42487940), (2, 21243970), (4, 10621985), (5, 8497588), (10, 4248794), (11, 3862540), (20, 2124397), (22, 1931270), (44, 965635), (55, 772508), (97, 438020), (110, 386254), (121, 351140), (181, 234740), (194, 219010), (220, 193127), (242, 175570), (362, 117370), (388, 109505), (484, 87785), (485, 87604), (605, 70228), (724, 58685), (905, 46948), (970, 43802), (1067, 39820), (1210, 35114), (1810, 23474), (1940, 21901), (1991, 21340), (2134, 19910), (2420, 17557), (3620, 11737), (3982, 10670), (4268, 9955), (5335, 7964)]