19371640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:460

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 27284360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 71, 76, 95, 142, 152, 190, 284, 355, 359, 380, 568, 710, 718, 760, 1349, 1420, 1436, 1795, 2698, 2840, 2872, 3590, 5396, 6745, 6821, 7180, 10792, 13490, 13642, 14360, 25489, 26980, 27284, 34105, 50978, 53960, 54568, 68210, 101956, 127445, 136420, 203912, 254890, 272840, 484291, 509780, 968582, 1019560, 1937164, 2421455, 3874328, 4842910, 9685820, 19371640]

約数ペア:

[(1, 19371640), (2, 9685820), (4, 4842910), (5, 3874328), (8, 2421455), (10, 1937164), (19, 1019560), (20, 968582), (38, 509780), (40, 484291), (71, 272840), (76, 254890), (95, 203912), (142, 136420), (152, 127445), (190, 101956), (284, 68210), (355, 54568), (359, 53960), (380, 50978), (568, 34105), (710, 27284), (718, 26980), (760, 25489), (1349, 14360), (1420, 13642), (1436, 13490), (1795, 10792), (2698, 7180), (2840, 6821), (2872, 6745), (3590, 5396)]