198798990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{509741}}^1$

素因数の和:509764

約数の個数: 32

約数和(自身を含む): 513819936

約数和(自身を除く): 315020946

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 509741, 1019482, 1529223, 2548705, 3058446, 5097410, 6626633, 7646115, 13253266, 15292230, 19879899, 33133165, 39759798, 66266330, 99399495, 198798990]

約数ペア:

[(1, 198798990), (2, 99399495), (3, 66266330), (5, 39759798), (6, 33133165), (10, 19879899), (13, 15292230), (15, 13253266), (26, 7646115), (30, 6626633), (39, 5097410), (65, 3058446), (78, 2548705), (130, 1529223), (195, 1019482), (390, 509741)]