51939620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{653}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 113058288

約数和(自身を除く): 61118668

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 97, 164, 194, 205, 388, 410, 485, 653, 820, 970, 1306, 1940, 2612, 3265, 3977, 6530, 7954, 13060, 15908, 19885, 26773, 39770, 53546, 63341, 79540, 107092, 126682, 133865, 253364, 267730, 316705, 535460, 633410, 1266820, 2596981, 5193962, 10387924, 12984905, 25969810, 51939620]

約数ペア:

[(1, 51939620), (2, 25969810), (4, 12984905), (5, 10387924), (10, 5193962), (20, 2596981), (41, 1266820), (82, 633410), (97, 535460), (164, 316705), (194, 267730), (205, 253364), (388, 133865), (410, 126682), (485, 107092), (653, 79540), (820, 63341), (970, 53546), (1306, 39770), (1940, 26773), (2612, 19885), (3265, 15908), (3977, 13060), (6530, 7954)]