1900998180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{81869}}^1$

素因数の和:81930

約数の個数: 96

約数和(自身を含む): 6051830400

約数和(自身を除く): 4150832220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 43, 45, 54, 60, 86, 90, 108, 129, 135, 172, 180, 215, 258, 270, 387, 430, 516, 540, 645, 774, 860, 1161, 1290, 1548, 1935, 2322, 2580, 3870, 4644, 5805, 7740, 11610, 23220, 81869, 163738, 245607, 327476, 409345, 491214, 736821, 818690, 982428, 1228035, 1473642, 1637380, 2210463, 2456070, 2947284, 3520367, 3684105, 4420926, 4912140, 7040734, 7368210, 8841852, 10561101, 11052315, 14081468, 14736420, 17601835, 21122202, 22104630, 31683303, 35203670, 42244404, 44209260, 52805505, 63366606, 70407340, 95049909, 105611010, 126733212, 158416515, 190099818, 211222020, 316833030, 380199636, 475249545, 633666060, 950499090, 1900998180]

約数ペア:

[(1, 1900998180), (2, 950499090), (3, 633666060), (4, 475249545), (5, 380199636), (6, 316833030), (9, 211222020), (10, 190099818), (12, 158416515), (15, 126733212), (18, 105611010), (20, 95049909), (27, 70407340), (30, 63366606), (36, 52805505), (43, 44209260), (45, 42244404), (54, 35203670), (60, 31683303), (86, 22104630), (90, 21122202), (108, 17601835), (129, 14736420), (135, 14081468), (172, 11052315), (180, 10561101), (215, 8841852), (258, 7368210), (270, 7040734), (387, 4912140), (430, 4420926), (516, 3684105), (540, 3520367), (645, 2947284), (774, 2456070), (860, 2210463), (1161, 1637380), (1290, 1473642), (1548, 1228035), (1935, 982428), (2322, 818690), (2580, 736821), (3870, 491214), (4644, 409345), (5805, 327476), (7740, 245607), (11610, 163738), (23220, 81869)]