217025340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{516727}}^1$

素因数の和:516746

約数の個数: 48

約数和(自身を含む): 694482432

約数和(自身を除く): 477457092

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 516727, 1033454, 1550181, 2066908, 2583635, 3100362, 3617089, 5167270, 6200724, 7234178, 7750905, 10334540, 10851267, 14468356, 15501810, 18085445, 21702534, 31003620, 36170890, 43405068, 54256335, 72341780, 108512670, 217025340]

約数ペア:

[(1, 217025340), (2, 108512670), (3, 72341780), (4, 54256335), (5, 43405068), (6, 36170890), (7, 31003620), (10, 21702534), (12, 18085445), (14, 15501810), (15, 14468356), (20, 10851267), (21, 10334540), (28, 7750905), (30, 7234178), (35, 6200724), (42, 5167270), (60, 3617089), (70, 3100362), (84, 2583635), (105, 2066908), (140, 1550181), (210, 1033454), (420, 516727)]