249388640

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{331}}^1$

素因数の和:640

約数の個数: 96

約数和(自身を含む): 627981984

約数和(自身を除く): 378593344

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 277, 331, 340, 544, 554, 662, 680, 1108, 1324, 1360, 1385, 1655, 2216, 2648, 2720, 2770, 3310, 4432, 4709, 5296, 5540, 5627, 6620, 8864, 9418, 10592, 11080, 11254, 13240, 18836, 22160, 22508, 23545, 26480, 28135, 37672, 44320, 45016, 47090, 52960, 56270, 75344, 90032, 91687, 94180, 112540, 150688, 180064, 183374, 188360, 225080, 366748, 376720, 450160, 458435, 733496, 753440, 900320, 916870, 1466992, 1558679, 1833740, 2933984, 3117358, 3667480, 6234716, 7334960, 7793395, 12469432, 14669920, 15586790, 24938864, 31173580, 49877728, 62347160, 124694320, 249388640]

約数ペア:

[(1, 249388640), (2, 124694320), (4, 62347160), (5, 49877728), (8, 31173580), (10, 24938864), (16, 15586790), (17, 14669920), (20, 12469432), (32, 7793395), (34, 7334960), (40, 6234716), (68, 3667480), (80, 3117358), (85, 2933984), (136, 1833740), (160, 1558679), (170, 1466992), (272, 916870), (277, 900320), (331, 753440), (340, 733496), (544, 458435), (554, 450160), (662, 376720), (680, 366748), (1108, 225080), (1324, 188360), (1360, 183374), (1385, 180064), (1655, 150688), (2216, 112540), (2648, 94180), (2720, 91687), (2770, 90032), (3310, 75344), (4432, 56270), (4709, 52960), (5296, 47090), (5540, 45016), (5627, 44320), (6620, 37672), (8864, 28135), (9418, 26480), (10592, 23545), (11080, 22508), (11254, 22160), (13240, 18836)]