638765760

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{665381}}^1$

素因数の和:665401

約数の個数: 56

約数和(自身を含む): 2028084336

約数和(自身を除く): 1389318576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 665381, 1330762, 1996143, 2661524, 3326905, 3992286, 5323048, 6653810, 7984572, 9980715, 10646096, 13307620, 15969144, 19961430, 21292192, 26615240, 31938288, 39922860, 42584384, 53230480, 63876576, 79845720, 106460960, 127753152, 159691440, 212921920, 319382880, 638765760]

約数ペア:

[(1, 638765760), (2, 319382880), (3, 212921920), (4, 159691440), (5, 127753152), (6, 106460960), (8, 79845720), (10, 63876576), (12, 53230480), (15, 42584384), (16, 39922860), (20, 31938288), (24, 26615240), (30, 21292192), (32, 19961430), (40, 15969144), (48, 13307620), (60, 10646096), (64, 9980715), (80, 7984572), (96, 6653810), (120, 5323048), (160, 3992286), (192, 3326905), (240, 2661524), (320, 1996143), (480, 1330762), (960, 665381)]