20776910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{223}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 47222784

約数和(自身を除く): 26445874

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 121, 154, 223, 242, 385, 446, 605, 770, 847, 1115, 1210, 1331, 1561, 1694, 2230, 2453, 2662, 3122, 4235, 4906, 6655, 7805, 8470, 9317, 12265, 13310, 15610, 17171, 18634, 24530, 26983, 34342, 46585, 53966, 85855, 93170, 134915, 171710, 188881, 269830, 296813, 377762, 593626, 944405, 1484065, 1888810, 2077691, 2968130, 4155382, 10388455, 20776910]

約数ペア:

[(1, 20776910), (2, 10388455), (5, 4155382), (7, 2968130), (10, 2077691), (11, 1888810), (14, 1484065), (22, 944405), (35, 593626), (55, 377762), (70, 296813), (77, 269830), (110, 188881), (121, 171710), (154, 134915), (223, 93170), (242, 85855), (385, 53966), (446, 46585), (605, 34342), (770, 26983), (847, 24530), (1115, 18634), (1210, 17171), (1331, 15610), (1561, 13310), (1694, 12265), (2230, 9317), (2453, 8470), (2662, 7805), (3122, 6655), (4235, 4906)]