20512506580

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{509}}^1\times {\mathrm{20773}}^1$

素因数の和:21388

約数の個数: 48

約数和(自身を含む): 43607949840

約数和(自身を除く): 23095443260

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 509, 970, 1018, 1940, 2036, 2545, 5090, 10180, 20773, 41546, 49373, 83092, 98746, 103865, 197492, 207730, 246865, 415460, 493730, 987460, 2014981, 4029962, 8059924, 10074905, 10573457, 20149810, 21146914, 40299620, 42293828, 52867285, 105734570, 211469140, 1025625329, 2051250658, 4102501316, 5128126645, 10256253290, 20512506580]

約数ペア:

[(1, 20512506580), (2, 10256253290), (4, 5128126645), (5, 4102501316), (10, 2051250658), (20, 1025625329), (97, 211469140), (194, 105734570), (388, 52867285), (485, 42293828), (509, 40299620), (970, 21146914), (1018, 20149810), (1940, 10573457), (2036, 10074905), (2545, 8059924), (5090, 4029962), (10180, 2014981), (20773, 987460), (41546, 493730), (49373, 415460), (83092, 246865), (98746, 207730), (103865, 197492)]