18640070

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{647}}^1$

素因数の和:764

約数の個数: 32

約数和(自身を含む): 34898688

約数和(自身を除く): 16258618

約数列:

[1, 2, 5, 10, 43, 67, 86, 134, 215, 335, 430, 647, 670, 1294, 2881, 3235, 5762, 6470, 14405, 27821, 28810, 43349, 55642, 86698, 139105, 216745, 278210, 433490, 1864007, 3728014, 9320035, 18640070]

約数ペア:

[(1, 18640070), (2, 9320035), (5, 3728014), (10, 1864007), (43, 433490), (67, 278210), (86, 216745), (134, 139105), (215, 86698), (335, 55642), (430, 43349), (647, 28810), (670, 27821), (1294, 14405), (2881, 6470), (3235, 5762)]