20610416

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1033}}^1$

素因数の和:1113

約数の個数: 40

約数和(自身を含む): 42311280

約数和(自身を除く): 21700864

約数列:

[1, 2, 4, 8, 16, 29, 43, 58, 86, 116, 172, 232, 344, 464, 688, 1033, 1247, 2066, 2494, 4132, 4988, 8264, 9976, 16528, 19952, 29957, 44419, 59914, 88838, 119828, 177676, 239656, 355352, 479312, 710704, 1288151, 2576302, 5152604, 10305208, 20610416]

約数ペア:

[(1, 20610416), (2, 10305208), (4, 5152604), (8, 2576302), (16, 1288151), (29, 710704), (43, 479312), (58, 355352), (86, 239656), (116, 177676), (172, 119828), (232, 88838), (344, 59914), (464, 44419), (688, 29957), (1033, 19952), (1247, 16528), (2066, 9976), (2494, 8264), (4132, 4988)]