1387403780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{35267}}^1$

素因数の和:35564

約数の個数: 48

約数和(自身を含む): 3341713536

約数和(自身を除く): 1954309756

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 281, 562, 1124, 1405, 1967, 2810, 3934, 5620, 7868, 9835, 19670, 35267, 39340, 70534, 141068, 176335, 246869, 352670, 493738, 705340, 987476, 1234345, 2468690, 4937380, 9910027, 19820054, 39640108, 49550135, 69370189, 99100270, 138740378, 198200540, 277480756, 346850945, 693701890, 1387403780]

約数ペア:

[(1, 1387403780), (2, 693701890), (4, 346850945), (5, 277480756), (7, 198200540), (10, 138740378), (14, 99100270), (20, 69370189), (28, 49550135), (35, 39640108), (70, 19820054), (140, 9910027), (281, 4937380), (562, 2468690), (1124, 1234345), (1405, 987476), (1967, 705340), (2810, 493738), (3934, 352670), (5620, 246869), (7868, 176335), (9835, 141068), (19670, 70534), (35267, 39340)]