78729820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{3833}}^1$

素因数の和:3934

約数の個数: 48

約数和(自身を含む): 180351360

約数和(自身を除く): 101621540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 3833, 4108, 5135, 7666, 10270, 15332, 19165, 20540, 38330, 49829, 76660, 99658, 199316, 249145, 302807, 498290, 605614, 996580, 1211228, 1514035, 3028070, 3936491, 6056140, 7872982, 15745964, 19682455, 39364910, 78729820]

約数ペア:

[(1, 78729820), (2, 39364910), (4, 19682455), (5, 15745964), (10, 7872982), (13, 6056140), (20, 3936491), (26, 3028070), (52, 1514035), (65, 1211228), (79, 996580), (130, 605614), (158, 498290), (260, 302807), (316, 249145), (395, 199316), (790, 99658), (1027, 76660), (1580, 49829), (2054, 38330), (3833, 20540), (4108, 19165), (5135, 15332), (7666, 10270)]