20726416

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2351}}^1$

素因数の和:2407

約数の個数: 40

約数和(自身を含む): 43747200

約数和(自身を除く): 23020784

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 76, 116, 152, 232, 304, 464, 551, 1102, 2204, 2351, 4408, 4702, 8816, 9404, 18808, 37616, 44669, 68179, 89338, 136358, 178676, 272716, 357352, 545432, 714704, 1090864, 1295401, 2590802, 5181604, 10363208, 20726416]

約数ペア:

[(1, 20726416), (2, 10363208), (4, 5181604), (8, 2590802), (16, 1295401), (19, 1090864), (29, 714704), (38, 545432), (58, 357352), (76, 272716), (116, 178676), (152, 136358), (232, 89338), (304, 68179), (464, 44669), (551, 37616), (1102, 18808), (2204, 9404), (2351, 8816), (4408, 4702)]