78418920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{653491}}^1$

素因数の和:653505

約数の個数: 32

約数和(自身を含む): 235257120

約数和(自身を除く): 156838200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 653491, 1306982, 1960473, 2613964, 3267455, 3920946, 5227928, 6534910, 7841892, 9802365, 13069820, 15683784, 19604730, 26139640, 39209460, 78418920]

約数ペア:

[(1, 78418920), (2, 39209460), (3, 26139640), (4, 19604730), (5, 15683784), (6, 13069820), (8, 9802365), (10, 7841892), (12, 6534910), (15, 5227928), (20, 3920946), (24, 3267455), (30, 2613964), (40, 1960473), (60, 1306982), (120, 653491)]