8514380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{997}}^1$

素因数の和:1074

約数の個数: 48

約数和(自身を含む): 20790336

約数和(自身を除く): 12275956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 997, 1220, 1708, 1994, 2135, 3988, 4270, 4985, 6979, 8540, 9970, 13958, 19940, 27916, 34895, 60817, 69790, 121634, 139580, 243268, 304085, 425719, 608170, 851438, 1216340, 1702876, 2128595, 4257190, 8514380]

約数ペア:

[(1, 8514380), (2, 4257190), (4, 2128595), (5, 1702876), (7, 1216340), (10, 851438), (14, 608170), (20, 425719), (28, 304085), (35, 243268), (61, 139580), (70, 121634), (122, 69790), (140, 60817), (244, 34895), (305, 27916), (427, 19940), (610, 13958), (854, 9970), (997, 8540), (1220, 6979), (1708, 4985), (1994, 4270), (2135, 3988)]