18849710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1$

素因数の和:377

約数の個数: 64

約数和(自身を含む): 40435200

約数和(自身を除く): 21585490

約数列:

[1, 2, 5, 10, 11, 19, 22, 29, 38, 55, 58, 95, 110, 145, 190, 209, 290, 311, 319, 418, 551, 622, 638, 1045, 1102, 1555, 1595, 2090, 2755, 3110, 3190, 3421, 5510, 5909, 6061, 6842, 9019, 11818, 12122, 17105, 18038, 29545, 30305, 34210, 45095, 59090, 60610, 64999, 90190, 99209, 129998, 171361, 198418, 324995, 342722, 496045, 649990, 856805, 992090, 1713610, 1884971, 3769942, 9424855, 18849710]

約数ペア:

[(1, 18849710), (2, 9424855), (5, 3769942), (10, 1884971), (11, 1713610), (19, 992090), (22, 856805), (29, 649990), (38, 496045), (55, 342722), (58, 324995), (95, 198418), (110, 171361), (145, 129998), (190, 99209), (209, 90190), (290, 64999), (311, 60610), (319, 59090), (418, 45095), (551, 34210), (622, 30305), (638, 29545), (1045, 18038), (1102, 17105), (1555, 12122), (1595, 11818), (2090, 9019), (2755, 6842), (3110, 6061), (3190, 5909), (3421, 5510)]