389621872

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{1741}}^1$

素因数の和:2017

約数の個数: 40

約数和(自身を含む): 769852512

約数和(自身を除く): 380230640

約数列:

[1, 2, 4, 8, 16, 71, 142, 197, 284, 394, 568, 788, 1136, 1576, 1741, 3152, 3482, 6964, 13928, 13987, 27856, 27974, 55948, 111896, 123611, 223792, 247222, 342977, 494444, 685954, 988888, 1371908, 1977776, 2743816, 5487632, 24351367, 48702734, 97405468, 194810936, 389621872]

約数ペア:

[(1, 389621872), (2, 194810936), (4, 97405468), (8, 48702734), (16, 24351367), (71, 5487632), (142, 2743816), (197, 1977776), (284, 1371908), (394, 988888), (568, 685954), (788, 494444), (1136, 342977), (1576, 247222), (1741, 223792), (3152, 123611), (3482, 111896), (6964, 55948), (13928, 27974), (13987, 27856)]