20615210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{653}}^1$

素因数の和:719

約数の個数: 64

約数和(自身を含む): 47464704

約数和(自身を除く): 26849494

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 41, 55, 70, 77, 82, 110, 154, 205, 287, 385, 410, 451, 574, 653, 770, 902, 1306, 1435, 2255, 2870, 3157, 3265, 4510, 4571, 6314, 6530, 7183, 9142, 14366, 15785, 22855, 26773, 31570, 35915, 45710, 50281, 53546, 71830, 100562, 133865, 187411, 251405, 267730, 294503, 374822, 502810, 589006, 937055, 1472515, 1874110, 2061521, 2945030, 4123042, 10307605, 20615210]

約数ペア:

[(1, 20615210), (2, 10307605), (5, 4123042), (7, 2945030), (10, 2061521), (11, 1874110), (14, 1472515), (22, 937055), (35, 589006), (41, 502810), (55, 374822), (70, 294503), (77, 267730), (82, 251405), (110, 187411), (154, 133865), (205, 100562), (287, 71830), (385, 53546), (410, 50281), (451, 45710), (574, 35915), (653, 31570), (770, 26773), (902, 22855), (1306, 15785), (1435, 14366), (2255, 9142), (2870, 7183), (3157, 6530), (3265, 6314), (4510, 4571)]