397131410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{234989}}^1$

素因数の和:235022

約数の個数: 24

約数和(自身を含む): 774057060

約数和(自身を除く): 376925650

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 234989, 469978, 1174945, 2349890, 3054857, 6109714, 15274285, 30548570, 39713141, 79426282, 198565705, 397131410]

約数ペア:

[(1, 397131410), (2, 198565705), (5, 79426282), (10, 39713141), (13, 30548570), (26, 15274285), (65, 6109714), (130, 3054857), (169, 2349890), (338, 1174945), (845, 469978), (1690, 234989)]