204415240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1\times {\mathrm{467}}^1$

素因数の和:862

約数の個数: 64

約数和(自身を含む): 477135360

約数和(自身を除く): 272720120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 353, 467, 620, 706, 934, 1240, 1412, 1765, 1868, 2335, 2824, 3530, 3736, 4670, 7060, 9340, 10943, 14120, 14477, 18680, 21886, 28954, 43772, 54715, 57908, 72385, 87544, 109430, 115816, 144770, 164851, 218860, 289540, 329702, 437720, 579080, 659404, 824255, 1318808, 1648510, 3297020, 5110381, 6594040, 10220762, 20441524, 25551905, 40883048, 51103810, 102207620, 204415240]

約数ペア:

[(1, 204415240), (2, 102207620), (4, 51103810), (5, 40883048), (8, 25551905), (10, 20441524), (20, 10220762), (31, 6594040), (40, 5110381), (62, 3297020), (124, 1648510), (155, 1318808), (248, 824255), (310, 659404), (353, 579080), (467, 437720), (620, 329702), (706, 289540), (934, 218860), (1240, 164851), (1412, 144770), (1765, 115816), (1868, 109430), (2335, 87544), (2824, 72385), (3530, 57908), (3736, 54715), (4670, 43772), (7060, 28954), (9340, 21886), (10943, 18680), (14120, 14477)]