205900020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{9007}}^1$

素因数の和:9149

約数の個数: 72

約数和(自身を含む): 629551104

約数和(自身を除く): 423651084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 1143, 1270, 1524, 1905, 2286, 2540, 3810, 4572, 5715, 7620, 9007, 11430, 18014, 22860, 27021, 36028, 45035, 54042, 81063, 90070, 108084, 135105, 162126, 180140, 270210, 324252, 405315, 540420, 810630, 1143889, 1621260, 2287778, 3431667, 4575556, 5719445, 6863334, 10295001, 11438890, 13726668, 17158335, 20590002, 22877780, 34316670, 41180004, 51475005, 68633340, 102950010, 205900020]

約数ペア:

[(1, 205900020), (2, 102950010), (3, 68633340), (4, 51475005), (5, 41180004), (6, 34316670), (9, 22877780), (10, 20590002), (12, 17158335), (15, 13726668), (18, 11438890), (20, 10295001), (30, 6863334), (36, 5719445), (45, 4575556), (60, 3431667), (90, 2287778), (127, 1621260), (180, 1143889), (254, 810630), (381, 540420), (508, 405315), (635, 324252), (762, 270210), (1143, 180140), (1270, 162126), (1524, 135105), (1905, 108084), (2286, 90070), (2540, 81063), (3810, 54042), (4572, 45035), (5715, 36028), (7620, 27021), (9007, 22860), (11430, 18014)]