64920660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{154573}}^1$

素因数の和:154592

約数の個数: 48

約数和(自身を含む): 207747456

約数和(自身を除く): 142826796

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, 154573, 309146, 463719, 618292, 772865, 927438, 1082011, 1545730, 1854876, 2164022, 2318595, 3091460, 3246033, 4328044, 4637190, 5410055, 6492066, 9274380, 10820110, 12984132, 16230165, 21640220, 32460330, 64920660]

約数ペア:

[(1, 64920660), (2, 32460330), (3, 21640220), (4, 16230165), (5, 12984132), (6, 10820110), (7, 9274380), (10, 6492066), (12, 5410055), (14, 4637190), (15, 4328044), (20, 3246033), (21, 3091460), (28, 2318595), (30, 2164022), (35, 1854876), (42, 1545730), (60, 1082011), (70, 927438), (84, 772865), (105, 618292), (140, 463719), (210, 309146), (420, 154573)]