28806990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:353

約数の個数: 64

約数和(自身を含む): 71698176

約数和(自身を除く): 42891186

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 137, 163, 215, 258, 274, 326, 411, 430, 489, 645, 685, 815, 822, 978, 1290, 1370, 1630, 2055, 2445, 4110, 4890, 5891, 7009, 11782, 14018, 17673, 21027, 22331, 29455, 35045, 35346, 42054, 44662, 58910, 66993, 70090, 88365, 105135, 111655, 133986, 176730, 210270, 223310, 334965, 669930, 960233, 1920466, 2880699, 4801165, 5761398, 9602330, 14403495, 28806990]

約数ペア:

[(1, 28806990), (2, 14403495), (3, 9602330), (5, 5761398), (6, 4801165), (10, 2880699), (15, 1920466), (30, 960233), (43, 669930), (86, 334965), (129, 223310), (137, 210270), (163, 176730), (215, 133986), (258, 111655), (274, 105135), (326, 88365), (411, 70090), (430, 66993), (489, 58910), (645, 44662), (685, 42054), (815, 35346), (822, 35045), (978, 29455), (1290, 22331), (1370, 21027), (1630, 17673), (2055, 14018), (2445, 11782), (4110, 7009), (4890, 5891)]