20268668

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1229}}^1$

素因数の和:1290

約数の個数: 48

約数和(自身を含む): 44083200

約数和(自身を除く): 23814532

約数列:

[1, 2, 4, 7, 14, 19, 28, 31, 38, 62, 76, 124, 133, 217, 266, 434, 532, 589, 868, 1178, 1229, 2356, 2458, 4123, 4916, 8246, 8603, 16492, 17206, 23351, 34412, 38099, 46702, 76198, 93404, 152396, 163457, 266693, 326914, 533386, 653828, 723881, 1066772, 1447762, 2895524, 5067167, 10134334, 20268668]

約数ペア:

[(1, 20268668), (2, 10134334), (4, 5067167), (7, 2895524), (14, 1447762), (19, 1066772), (28, 723881), (31, 653828), (38, 533386), (62, 326914), (76, 266693), (124, 163457), (133, 152396), (217, 93404), (266, 76198), (434, 46702), (532, 38099), (589, 34412), (868, 23351), (1178, 17206), (1229, 16492), (2356, 8603), (2458, 8246), (4123, 4916)]