20246968

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 25372232

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 107, 109, 124, 214, 217, 218, 248, 428, 434, 436, 749, 763, 856, 868, 872, 1498, 1526, 1736, 2996, 3052, 3317, 3379, 5992, 6104, 6634, 6758, 11663, 13268, 13516, 23219, 23326, 23653, 26536, 27032, 46438, 46652, 47306, 81641, 92876, 93304, 94612, 163282, 185752, 189224, 326564, 361553, 653128, 723106, 1446212, 2530871, 2892424, 5061742, 10123484, 20246968]

約数ペア:

[(1, 20246968), (2, 10123484), (4, 5061742), (7, 2892424), (8, 2530871), (14, 1446212), (28, 723106), (31, 653128), (56, 361553), (62, 326564), (107, 189224), (109, 185752), (124, 163282), (214, 94612), (217, 93304), (218, 92876), (248, 81641), (428, 47306), (434, 46652), (436, 46438), (749, 27032), (763, 26536), (856, 23653), (868, 23326), (872, 23219), (1498, 13516), (1526, 13268), (1736, 11663), (2996, 6758), (3052, 6634), (3317, 6104), (3379, 5992)]