7986860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{641}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 19414080

約数和(自身を除く): 11427220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 641, 890, 1246, 1282, 1780, 2492, 2564, 3115, 3205, 4487, 6230, 6410, 8974, 12460, 12820, 17948, 22435, 44870, 57049, 89740, 114098, 228196, 285245, 399343, 570490, 798686, 1140980, 1597372, 1996715, 3993430, 7986860]

約数ペア:

[(1, 7986860), (2, 3993430), (4, 1996715), (5, 1597372), (7, 1140980), (10, 798686), (14, 570490), (20, 399343), (28, 285245), (35, 228196), (70, 114098), (89, 89740), (140, 57049), (178, 44870), (356, 22435), (445, 17948), (623, 12820), (641, 12460), (890, 8974), (1246, 6410), (1282, 6230), (1780, 4487), (2492, 3205), (2564, 3115)]