1330882720

素因数分解:

$2^5\times 5^1\times {\mathrm{157}}^1\times {\mathrm{52981}}^1$

素因数の和:53153

約数の個数: 48

約数和(自身を含む): 3164296968

約数和(自身を除く): 1833414248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 314, 628, 785, 1256, 1570, 2512, 3140, 5024, 6280, 12560, 25120, 52981, 105962, 211924, 264905, 423848, 529810, 847696, 1059620, 1695392, 2119240, 4238480, 8318017, 8476960, 16636034, 33272068, 41590085, 66544136, 83180170, 133088272, 166360340, 266176544, 332720680, 665441360, 1330882720]

約数ペア:

[(1, 1330882720), (2, 665441360), (4, 332720680), (5, 266176544), (8, 166360340), (10, 133088272), (16, 83180170), (20, 66544136), (32, 41590085), (40, 33272068), (80, 16636034), (157, 8476960), (160, 8318017), (314, 4238480), (628, 2119240), (785, 1695392), (1256, 1059620), (1570, 847696), (2512, 529810), (3140, 423848), (5024, 264905), (6280, 211924), (12560, 105962), (25120, 52981)]