7913720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{107}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 18399960

約数和(自身を除く): 10486240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 107, 172, 214, 215, 344, 428, 430, 535, 856, 860, 1070, 1720, 1849, 2140, 3698, 4280, 4601, 7396, 9202, 9245, 14792, 18404, 18490, 23005, 36808, 36980, 46010, 73960, 92020, 184040, 197843, 395686, 791372, 989215, 1582744, 1978430, 3956860, 7913720]

約数ペア:

[(1, 7913720), (2, 3956860), (4, 1978430), (5, 1582744), (8, 989215), (10, 791372), (20, 395686), (40, 197843), (43, 184040), (86, 92020), (107, 73960), (172, 46010), (214, 36980), (215, 36808), (344, 23005), (428, 18490), (430, 18404), (535, 14792), (856, 9245), (860, 9202), (1070, 7396), (1720, 4601), (1849, 4280), (2140, 3698)]