620571880

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{317}}^1\times {\mathrm{449}}^1$

素因数の和:886

約数の個数: 64

約数和(自身を含む): 1416690000

約数和(自身を除く): 796118120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 317, 436, 449, 545, 634, 872, 898, 1090, 1268, 1585, 1796, 2180, 2245, 2536, 3170, 3592, 4360, 4490, 6340, 8980, 12680, 17960, 34553, 48941, 69106, 97882, 138212, 142333, 172765, 195764, 244705, 276424, 284666, 345530, 391528, 489410, 569332, 691060, 711665, 978820, 1138664, 1382120, 1423330, 1957640, 2846660, 5693320, 15514297, 31028594, 62057188, 77571485, 124114376, 155142970, 310285940, 620571880]

約数ペア:

[(1, 620571880), (2, 310285940), (4, 155142970), (5, 124114376), (8, 77571485), (10, 62057188), (20, 31028594), (40, 15514297), (109, 5693320), (218, 2846660), (317, 1957640), (436, 1423330), (449, 1382120), (545, 1138664), (634, 978820), (872, 711665), (898, 691060), (1090, 569332), (1268, 489410), (1585, 391528), (1796, 345530), (2180, 284666), (2245, 276424), (2536, 244705), (3170, 195764), (3592, 172765), (4360, 142333), (4490, 138212), (6340, 97882), (8980, 69106), (12680, 48941), (17960, 34553)]