64471040

素因数分解:

$2^{14}\times 5^1\times {\mathrm{787}}^1$

素因数の和:820

約数の個数: 60

約数和(自身を含む): 154922376

約数和(自身を除く): 90451336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 787, 1024, 1280, 1574, 2048, 2560, 3148, 3935, 4096, 5120, 6296, 7870, 8192, 10240, 12592, 15740, 16384, 20480, 25184, 31480, 40960, 50368, 62960, 81920, 100736, 125920, 201472, 251840, 402944, 503680, 805888, 1007360, 1611776, 2014720, 3223552, 4029440, 6447104, 8058880, 12894208, 16117760, 32235520, 64471040]

約数ペア:

[(1, 64471040), (2, 32235520), (4, 16117760), (5, 12894208), (8, 8058880), (10, 6447104), (16, 4029440), (20, 3223552), (32, 2014720), (40, 1611776), (64, 1007360), (80, 805888), (128, 503680), (160, 402944), (256, 251840), (320, 201472), (512, 125920), (640, 100736), (787, 81920), (1024, 62960), (1280, 50368), (1574, 40960), (2048, 31480), (2560, 25184), (3148, 20480), (3935, 16384), (4096, 15740), (5120, 12592), (6296, 10240), (7870, 8192)]