19940432

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{269}}^1$

素因数の和:431

約数の個数: 40

約数和(自身を含む): 40075560

約数和(自身を除く): 20135128

約数列:

[1, 2, 4, 8, 16, 41, 82, 113, 164, 226, 269, 328, 452, 538, 656, 904, 1076, 1808, 2152, 4304, 4633, 9266, 11029, 18532, 22058, 30397, 37064, 44116, 60794, 74128, 88232, 121588, 176464, 243176, 486352, 1246277, 2492554, 4985108, 9970216, 19940432]

約数ペア:

[(1, 19940432), (2, 9970216), (4, 4985108), (8, 2492554), (16, 1246277), (41, 486352), (82, 243176), (113, 176464), (164, 121588), (226, 88232), (269, 74128), (328, 60794), (452, 44116), (538, 37064), (656, 30397), (904, 22058), (1076, 18532), (1808, 11029), (2152, 9266), (4304, 4633)]