268496670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{688453}}^1$

素因数の和:688476

約数の個数: 32

約数和(自身を含む): 693961632

約数和(自身を除く): 425464962

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 688453, 1376906, 2065359, 3442265, 4130718, 6884530, 8949889, 10326795, 17899778, 20653590, 26849667, 44749445, 53699334, 89498890, 134248335, 268496670]

約数ペア:

[(1, 268496670), (2, 134248335), (3, 89498890), (5, 53699334), (6, 44749445), (10, 26849667), (13, 20653590), (15, 17899778), (26, 10326795), (30, 8949889), (39, 6884530), (65, 4130718), (78, 3442265), (130, 2065359), (195, 1376906), (390, 688453)]