400947660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{7927}}^1$

素因数の和:8223

約数の個数: 72

約数和(自身を含む): 1220690016

約数和(自身を除く): 819742356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 281, 562, 843, 1124, 1405, 1686, 2529, 2810, 3372, 4215, 5058, 5620, 7927, 8430, 10116, 12645, 15854, 16860, 23781, 25290, 31708, 39635, 47562, 50580, 71343, 79270, 95124, 118905, 142686, 158540, 237810, 285372, 356715, 475620, 713430, 1426860, 2227487, 4454974, 6682461, 8909948, 11137435, 13364922, 20047383, 22274870, 26729844, 33412305, 40094766, 44549740, 66824610, 80189532, 100236915, 133649220, 200473830, 400947660]

約数ペア:

[(1, 400947660), (2, 200473830), (3, 133649220), (4, 100236915), (5, 80189532), (6, 66824610), (9, 44549740), (10, 40094766), (12, 33412305), (15, 26729844), (18, 22274870), (20, 20047383), (30, 13364922), (36, 11137435), (45, 8909948), (60, 6682461), (90, 4454974), (180, 2227487), (281, 1426860), (562, 713430), (843, 475620), (1124, 356715), (1405, 285372), (1686, 237810), (2529, 158540), (2810, 142686), (3372, 118905), (4215, 95124), (5058, 79270), (5620, 71343), (7927, 50580), (8430, 47562), (10116, 39635), (12645, 31708), (15854, 25290), (16860, 23781)]