206913720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{132637}}^1$

素因数の和:132664

約数の個数: 64

約数和(自身を含む): 668495520

約数和(自身を除く): 461581800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 132637, 265274, 397911, 530548, 663185, 795822, 1061096, 1326370, 1591644, 1724281, 1989555, 2652740, 3183288, 3448562, 3979110, 5172843, 5305480, 6897124, 7958220, 8621405, 10345686, 13794248, 15916440, 17242810, 20691372, 25864215, 34485620, 41382744, 51728430, 68971240, 103456860, 206913720]

約数ペア:

[(1, 206913720), (2, 103456860), (3, 68971240), (4, 51728430), (5, 41382744), (6, 34485620), (8, 25864215), (10, 20691372), (12, 17242810), (13, 15916440), (15, 13794248), (20, 10345686), (24, 8621405), (26, 7958220), (30, 6897124), (39, 5305480), (40, 5172843), (52, 3979110), (60, 3448562), (65, 3183288), (78, 2652740), (104, 1989555), (120, 1724281), (130, 1591644), (156, 1326370), (195, 1061096), (260, 795822), (312, 663185), (390, 530548), (520, 397911), (780, 265274), (1560, 132637)]