287491660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{12823}}^1$

素因数の和:12910

約数の個数: 48

約数和(自身を含む): 646329600

約数和(自身を除く): 358837940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 59, 76, 95, 118, 190, 236, 295, 380, 590, 1121, 1180, 2242, 4484, 5605, 11210, 12823, 22420, 25646, 51292, 64115, 128230, 243637, 256460, 487274, 756557, 974548, 1218185, 1513114, 2436370, 3026228, 3782785, 4872740, 7565570, 14374583, 15131140, 28749166, 57498332, 71872915, 143745830, 287491660]

約数ペア:

[(1, 287491660), (2, 143745830), (4, 71872915), (5, 57498332), (10, 28749166), (19, 15131140), (20, 14374583), (38, 7565570), (59, 4872740), (76, 3782785), (95, 3026228), (118, 2436370), (190, 1513114), (236, 1218185), (295, 974548), (380, 756557), (590, 487274), (1121, 256460), (1180, 243637), (2242, 128230), (4484, 64115), (5605, 51292), (11210, 25646), (12823, 22420)]