200388980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12829}}^1$

素因数の和:12920

約数の個数: 48

約数和(自身を含む): 465575040

約数和(自身を除く): 265186060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 7810, 12829, 15620, 25658, 51316, 64145, 128290, 141119, 256580, 282238, 564476, 705595, 910859, 1411190, 1821718, 2822380, 3643436, 4554295, 9108590, 10019449, 18217180, 20038898, 40077796, 50097245, 100194490, 200388980]

約数ペア:

[(1, 200388980), (2, 100194490), (4, 50097245), (5, 40077796), (10, 20038898), (11, 18217180), (20, 10019449), (22, 9108590), (44, 4554295), (55, 3643436), (71, 2822380), (110, 1821718), (142, 1411190), (220, 910859), (284, 705595), (355, 564476), (710, 282238), (781, 256580), (1420, 141119), (1562, 128290), (3124, 64145), (3905, 51316), (7810, 25658), (12829, 15620)]