208373990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{787}}^1$

素因数の和:917

約数の個数: 64

約数和(自身を含む): 428924160

約数和(自身を除く): 220550170

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 83, 110, 145, 166, 290, 319, 415, 638, 787, 830, 913, 1574, 1595, 1826, 2407, 3190, 3935, 4565, 4814, 7870, 8657, 9130, 12035, 17314, 22823, 24070, 26477, 43285, 45646, 52954, 65321, 86570, 114115, 130642, 132385, 228230, 251053, 264770, 326605, 502106, 653210, 718531, 1255265, 1437062, 1894309, 2510530, 3592655, 3788618, 7185310, 9471545, 18943090, 20837399, 41674798, 104186995, 208373990]

約数ペア:

[(1, 208373990), (2, 104186995), (5, 41674798), (10, 20837399), (11, 18943090), (22, 9471545), (29, 7185310), (55, 3788618), (58, 3592655), (83, 2510530), (110, 1894309), (145, 1437062), (166, 1255265), (290, 718531), (319, 653210), (415, 502106), (638, 326605), (787, 264770), (830, 251053), (913, 228230), (1574, 132385), (1595, 130642), (1826, 114115), (2407, 86570), (3190, 65321), (3935, 52954), (4565, 45646), (4814, 43285), (7870, 26477), (8657, 24070), (9130, 22823), (12035, 17314)]