64870640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47699}}^1$

素因数の和:47729

約数の個数: 40

約数和(自身を含む): 159699600

約数和(自身を除く): 94828960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 47699, 95398, 190796, 238495, 381592, 476990, 763184, 810883, 953980, 1621766, 1907960, 3243532, 3815920, 4054415, 6487064, 8108830, 12974128, 16217660, 32435320, 64870640]

約数ペア:

[(1, 64870640), (2, 32435320), (4, 16217660), (5, 12974128), (8, 8108830), (10, 6487064), (16, 4054415), (17, 3815920), (20, 3243532), (34, 1907960), (40, 1621766), (68, 953980), (80, 810883), (85, 763184), (136, 476990), (170, 381592), (272, 238495), (340, 190796), (680, 95398), (1360, 47699)]