15720786978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1109}}^1\times {\mathrm{181739}}^1$

素因数の和:182866

約数の個数: 32

約数和(自身を含む): 33890875200

約数和(自身を除く): 18170088222

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 1109, 2218, 3327, 6654, 14417, 28834, 43251, 86502, 181739, 363478, 545217, 1090434, 2362607, 4725214, 7087821, 14175642, 201548551, 403097102, 604645653, 1209291306, 2620131163, 5240262326, 7860393489, 15720786978]

約数ペア:

[(1, 15720786978), (2, 7860393489), (3, 5240262326), (6, 2620131163), (13, 1209291306), (26, 604645653), (39, 403097102), (78, 201548551), (1109, 14175642), (2218, 7087821), (3327, 4725214), (6654, 2362607), (14417, 1090434), (28834, 545217), (43251, 363478), (86502, 181739)]