28810380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6763}}^1$

素因数の和:6846

約数の個数: 48

約数和(自身を含む): 81817344

約数和(自身を除く): 53006964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 6763, 13526, 20289, 27052, 33815, 40578, 67630, 81156, 101445, 135260, 202890, 405780, 480173, 960346, 1440519, 1920692, 2400865, 2881038, 4801730, 5762076, 7202595, 9603460, 14405190, 28810380]

約数ペア:

[(1, 28810380), (2, 14405190), (3, 9603460), (4, 7202595), (5, 5762076), (6, 4801730), (10, 2881038), (12, 2400865), (15, 1920692), (20, 1440519), (30, 960346), (60, 480173), (71, 405780), (142, 202890), (213, 135260), (284, 101445), (355, 81156), (426, 67630), (710, 40578), (852, 33815), (1065, 27052), (1420, 20289), (2130, 13526), (4260, 6763)]