638860850

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{12739}}^1$

素因数の和:12827

約数の個数: 48

約数和(自身を含む): 1279605600

約数和(自身を除く): 640744750

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 59, 85, 118, 170, 295, 425, 590, 850, 1003, 1475, 2006, 2950, 5015, 10030, 12739, 25075, 25478, 50150, 63695, 127390, 216563, 318475, 433126, 636950, 751601, 1082815, 1503202, 2165630, 3758005, 5414075, 7516010, 10828150, 12777217, 18790025, 25554434, 37580050, 63886085, 127772170, 319430425, 638860850]

約数ペア:

[(1, 638860850), (2, 319430425), (5, 127772170), (10, 63886085), (17, 37580050), (25, 25554434), (34, 18790025), (50, 12777217), (59, 10828150), (85, 7516010), (118, 5414075), (170, 3758005), (295, 2165630), (425, 1503202), (590, 1082815), (850, 751601), (1003, 636950), (1475, 433126), (2006, 318475), (2950, 216563), (5015, 127390), (10030, 63695), (12739, 50150), (25075, 25478)]