678605438

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{3823}}^1$

素因数の和:4272

約数の個数: 32

約数和(自身を含む): 1204101120

約数和(自身を除く): 525495682

約数列:

[1, 2, 7, 14, 31, 62, 217, 409, 434, 818, 2863, 3823, 5726, 7646, 12679, 25358, 26761, 53522, 88753, 118513, 177506, 237026, 829591, 1563607, 1659182, 3127214, 10945249, 21890498, 48471817, 96943634, 339302719, 678605438]

約数ペア:

[(1, 678605438), (2, 339302719), (7, 96943634), (14, 48471817), (31, 21890498), (62, 10945249), (217, 3127214), (409, 1659182), (434, 1563607), (818, 829591), (2863, 237026), (3823, 177506), (5726, 118513), (7646, 88753), (12679, 53522), (25358, 26761)]