87212860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{21481}}^1$

素因数の和:21526

約数の個数: 48

約数和(自身を含む): 216538560

約数和(自身を除く): 129325700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 21481, 42962, 85924, 107405, 150367, 214810, 300734, 429620, 601468, 622949, 751835, 1245898, 1503670, 2491796, 3007340, 3114745, 4360643, 6229490, 8721286, 12458980, 17442572, 21803215, 43606430, 87212860]

約数ペア:

[(1, 87212860), (2, 43606430), (4, 21803215), (5, 17442572), (7, 12458980), (10, 8721286), (14, 6229490), (20, 4360643), (28, 3114745), (29, 3007340), (35, 2491796), (58, 1503670), (70, 1245898), (116, 751835), (140, 622949), (145, 601468), (203, 429620), (290, 300734), (406, 214810), (580, 150367), (812, 107405), (1015, 85924), (2030, 42962), (4060, 21481)]