2780212110

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7128749}}^1$

素因数の和:7128772

約数の個数: 32

約数和(自身を含む): 7185780000

約数和(自身を除く): 4405567890

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 7128749, 14257498, 21386247, 35643745, 42772494, 71287490, 92673737, 106931235, 185347474, 213862470, 278021211, 463368685, 556042422, 926737370, 1390106055, 2780212110]

約数ペア:

[(1, 2780212110), (2, 1390106055), (3, 926737370), (5, 556042422), (6, 463368685), (10, 278021211), (13, 213862470), (15, 185347474), (26, 106931235), (30, 92673737), (39, 71287490), (65, 42772494), (78, 35643745), (130, 21386247), (195, 14257498), (390, 7128749)]