245191640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{443}}^1$

素因数の和:692

約数の個数: 64

約数和(自身を含む): 562476960

約数和(自身を除く): 317285320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 137, 202, 274, 404, 443, 505, 548, 685, 808, 886, 1010, 1096, 1370, 1772, 2020, 2215, 2740, 3544, 4040, 4430, 5480, 8860, 13837, 17720, 27674, 44743, 55348, 60691, 69185, 89486, 110696, 121382, 138370, 178972, 223715, 242764, 276740, 303455, 357944, 447430, 485528, 553480, 606910, 894860, 1213820, 1789720, 2427640, 6129791, 12259582, 24519164, 30648955, 49038328, 61297910, 122595820, 245191640]

約数ペア:

[(1, 245191640), (2, 122595820), (4, 61297910), (5, 49038328), (8, 30648955), (10, 24519164), (20, 12259582), (40, 6129791), (101, 2427640), (137, 1789720), (202, 1213820), (274, 894860), (404, 606910), (443, 553480), (505, 485528), (548, 447430), (685, 357944), (808, 303455), (886, 276740), (1010, 242764), (1096, 223715), (1370, 178972), (1772, 138370), (2020, 121382), (2215, 110696), (2740, 89486), (3544, 69185), (4040, 60691), (4430, 55348), (5480, 44743), (8860, 27674), (13837, 17720)]