66555440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{757}}^1$

素因数の和:934

約数の個数: 80

約数和(自身を含む): 178208832

約数和(自身を除く): 111653392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 314, 560, 628, 757, 785, 1099, 1256, 1514, 1570, 2198, 2512, 3028, 3140, 3785, 4396, 5299, 5495, 6056, 6280, 7570, 8792, 10598, 10990, 12112, 12560, 15140, 17584, 21196, 21980, 26495, 30280, 42392, 43960, 52990, 60560, 84784, 87920, 105980, 118849, 211960, 237698, 423920, 475396, 594245, 831943, 950792, 1188490, 1663886, 1901584, 2376980, 3327772, 4159715, 4753960, 6655544, 8319430, 9507920, 13311088, 16638860, 33277720, 66555440]

約数ペア:

[(1, 66555440), (2, 33277720), (4, 16638860), (5, 13311088), (7, 9507920), (8, 8319430), (10, 6655544), (14, 4753960), (16, 4159715), (20, 3327772), (28, 2376980), (35, 1901584), (40, 1663886), (56, 1188490), (70, 950792), (80, 831943), (112, 594245), (140, 475396), (157, 423920), (280, 237698), (314, 211960), (560, 118849), (628, 105980), (757, 87920), (785, 84784), (1099, 60560), (1256, 52990), (1514, 43960), (1570, 42392), (2198, 30280), (2512, 26495), (3028, 21980), (3140, 21196), (3785, 17584), (4396, 15140), (5299, 12560), (5495, 12112), (6056, 10990), (6280, 10598), (7570, 8792)]