18955340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{283}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 42511392

約数和(自身を除く): 23556052

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 197, 283, 340, 394, 566, 788, 985, 1132, 1415, 1970, 2830, 3349, 3940, 4811, 5660, 6698, 9622, 13396, 16745, 19244, 24055, 33490, 48110, 55751, 66980, 96220, 111502, 223004, 278755, 557510, 947767, 1115020, 1895534, 3791068, 4738835, 9477670, 18955340]

約数ペア:

[(1, 18955340), (2, 9477670), (4, 4738835), (5, 3791068), (10, 1895534), (17, 1115020), (20, 947767), (34, 557510), (68, 278755), (85, 223004), (170, 111502), (197, 96220), (283, 66980), (340, 55751), (394, 48110), (566, 33490), (788, 24055), (985, 19244), (1132, 16745), (1415, 13396), (1970, 9622), (2830, 6698), (3349, 5660), (3940, 4811)]