128710016

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 267648000

約数和(自身を除く): 138937984

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 163, 199, 248, 326, 398, 496, 652, 796, 992, 1304, 1592, 1984, 2608, 3184, 3968, 5053, 5216, 6169, 6368, 10106, 10432, 12338, 12736, 20212, 20864, 24676, 25472, 32437, 40424, 49352, 64874, 80848, 98704, 129748, 161696, 197408, 259496, 323392, 394816, 518992, 646784, 789632, 1005547, 1037984, 2011094, 2075968, 4022188, 4151936, 8044376, 16088752, 32177504, 64355008, 128710016]

約数ペア:

[(1, 128710016), (2, 64355008), (4, 32177504), (8, 16088752), (16, 8044376), (31, 4151936), (32, 4022188), (62, 2075968), (64, 2011094), (124, 1037984), (128, 1005547), (163, 789632), (199, 646784), (248, 518992), (326, 394816), (398, 323392), (496, 259496), (652, 197408), (796, 161696), (992, 129748), (1304, 98704), (1592, 80848), (1984, 64874), (2608, 49352), (3184, 40424), (3968, 32437), (5053, 25472), (5216, 24676), (6169, 20864), (6368, 20212), (10106, 12736), (10432, 12338)]