31872680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1279}}^1$

素因数の和:1386

約数の個数: 64

約数和(自身を含む): 82944000

約数和(自身を除く): 51071320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 623, 712, 890, 1246, 1279, 1780, 2492, 2558, 3115, 3560, 4984, 5116, 6230, 6395, 8953, 10232, 12460, 12790, 17906, 24920, 25580, 35812, 44765, 51160, 71624, 89530, 113831, 179060, 227662, 358120, 455324, 569155, 796817, 910648, 1138310, 1593634, 2276620, 3187268, 3984085, 4553240, 6374536, 7968170, 15936340, 31872680]

約数ペア:

[(1, 31872680), (2, 15936340), (4, 7968170), (5, 6374536), (7, 4553240), (8, 3984085), (10, 3187268), (14, 2276620), (20, 1593634), (28, 1138310), (35, 910648), (40, 796817), (56, 569155), (70, 455324), (89, 358120), (140, 227662), (178, 179060), (280, 113831), (356, 89530), (445, 71624), (623, 51160), (712, 44765), (890, 35812), (1246, 25580), (1279, 24920), (1780, 17906), (2492, 12790), (2558, 12460), (3115, 10232), (3560, 8953), (4984, 6395), (5116, 6230)]