209675340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{166409}}^1$

素因数の和:166431

約数の個数: 72

約数和(自身を含む): 726878880

約数和(自身を除く): 517203540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 166409, 332818, 499227, 665636, 832045, 998454, 1164863, 1497681, 1664090, 1996908, 2329726, 2496135, 2995362, 3328180, 3494589, 4659452, 4992270, 5824315, 5990724, 6989178, 7488405, 9984540, 10483767, 11648630, 13978356, 14976810, 17472945, 20967534, 23297260, 29953620, 34945890, 41935068, 52418835, 69891780, 104837670, 209675340]

約数ペア:

[(1, 209675340), (2, 104837670), (3, 69891780), (4, 52418835), (5, 41935068), (6, 34945890), (7, 29953620), (9, 23297260), (10, 20967534), (12, 17472945), (14, 14976810), (15, 13978356), (18, 11648630), (20, 10483767), (21, 9984540), (28, 7488405), (30, 6989178), (35, 5990724), (36, 5824315), (42, 4992270), (45, 4659452), (60, 3494589), (63, 3328180), (70, 2995362), (84, 2496135), (90, 2329726), (105, 1996908), (126, 1664090), (140, 1497681), (180, 1164863), (210, 998454), (252, 832045), (315, 665636), (420, 499227), (630, 332818), (1260, 166409)]