20692210

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{349}}^1$

素因数の和:392

約数の個数: 72

約数和(自身を含む): 47760300

約数和(自身を除く): 27068090

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 121, 154, 242, 245, 349, 385, 490, 539, 605, 698, 770, 847, 1078, 1210, 1694, 1745, 2443, 2695, 3490, 3839, 4235, 4886, 5390, 5929, 7678, 8470, 11858, 12215, 17101, 19195, 24430, 26873, 29645, 34202, 38390, 42229, 53746, 59290, 84458, 85505, 134365, 171010, 188111, 211145, 268730, 295603, 376222, 422290, 591206, 940555, 1478015, 1881110, 2069221, 2956030, 4138442, 10346105, 20692210]

約数ペア:

[(1, 20692210), (2, 10346105), (5, 4138442), (7, 2956030), (10, 2069221), (11, 1881110), (14, 1478015), (22, 940555), (35, 591206), (49, 422290), (55, 376222), (70, 295603), (77, 268730), (98, 211145), (110, 188111), (121, 171010), (154, 134365), (242, 85505), (245, 84458), (349, 59290), (385, 53746), (490, 42229), (539, 38390), (605, 34202), (698, 29645), (770, 26873), (847, 24430), (1078, 19195), (1210, 17101), (1694, 12215), (1745, 11858), (2443, 8470), (2695, 7678), (3490, 5929), (3839, 5390), (4235, 4886)]