64921720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{55967}}^1$

素因数の和:56007

約数の個数: 32

約数和(自身を含む): 151113600

約数和(自身を除く): 86191880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 55967, 111934, 223868, 279835, 447736, 559670, 1119340, 1623043, 2238680, 3246086, 6492172, 8115215, 12984344, 16230430, 32460860, 64921720]

約数ペア:

[(1, 64921720), (2, 32460860), (4, 16230430), (5, 12984344), (8, 8115215), (10, 6492172), (20, 3246086), (29, 2238680), (40, 1623043), (58, 1119340), (116, 559670), (145, 447736), (232, 279835), (290, 223868), (580, 111934), (1160, 55967)]