678989870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{13781}}^1$

素因数の和:14180

約数の個数: 32

約数和(自身を含む): 1319764320

約数和(自身を除く): 640774450

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 379, 758, 1895, 3790, 4927, 9854, 13781, 24635, 27562, 49270, 68905, 137810, 179153, 358306, 895765, 1791530, 5222999, 10445998, 26114995, 52229990, 67898987, 135797974, 339494935, 678989870]

約数ペア:

[(1, 678989870), (2, 339494935), (5, 135797974), (10, 67898987), (13, 52229990), (26, 26114995), (65, 10445998), (130, 5222999), (379, 1791530), (758, 895765), (1895, 358306), (3790, 179153), (4927, 137810), (9854, 68905), (13781, 49270), (24635, 27562)]