308945540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{2411}}^1$

素因数の和:2612

約数の個数: 48

約数和(自身を含む): 668606400

約数和(自身を除く): 359660860

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 149, 172, 215, 298, 430, 596, 745, 860, 1490, 2411, 2980, 4822, 6407, 9644, 12055, 12814, 24110, 25628, 32035, 48220, 64070, 103673, 128140, 207346, 359239, 414692, 518365, 718478, 1036730, 1436956, 1796195, 2073460, 3592390, 7184780, 15447277, 30894554, 61789108, 77236385, 154472770, 308945540]

約数ペア:

[(1, 308945540), (2, 154472770), (4, 77236385), (5, 61789108), (10, 30894554), (20, 15447277), (43, 7184780), (86, 3592390), (149, 2073460), (172, 1796195), (215, 1436956), (298, 1036730), (430, 718478), (596, 518365), (745, 414692), (860, 359239), (1490, 207346), (2411, 128140), (2980, 103673), (4822, 64070), (6407, 48220), (9644, 32035), (12055, 25628), (12814, 24110)]