388973910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{997369}}^1$

素因数の和:997392

約数の個数: 32

約数和(自身を含む): 1005348960

約数和(自身を除く): 616375050

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 997369, 1994738, 2992107, 4986845, 5984214, 9973690, 12965797, 14960535, 25931594, 29921070, 38897391, 64828985, 77794782, 129657970, 194486955, 388973910]

約数ペア:

[(1, 388973910), (2, 194486955), (3, 129657970), (5, 77794782), (6, 64828985), (10, 38897391), (13, 29921070), (15, 25931594), (26, 14960535), (30, 12965797), (39, 9973690), (65, 5984214), (78, 4986845), (130, 2992107), (195, 1994738), (390, 997369)]