18128000

素因数分解:

$2^7\times 5^3\times {\mathrm{11}}^1\times {\mathrm{103}}^1$

素因数の和:143

約数の個数: 128

約数和(自身を含む): 49645440

約数和(自身を除く): 31517440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 103, 110, 125, 128, 160, 176, 200, 206, 220, 250, 275, 320, 352, 400, 412, 440, 500, 515, 550, 640, 704, 800, 824, 880, 1000, 1030, 1100, 1133, 1375, 1408, 1600, 1648, 1760, 2000, 2060, 2200, 2266, 2575, 2750, 3200, 3296, 3520, 4000, 4120, 4400, 4532, 5150, 5500, 5665, 6592, 7040, 8000, 8240, 8800, 9064, 10300, 11000, 11330, 12875, 13184, 16000, 16480, 17600, 18128, 20600, 22000, 22660, 25750, 28325, 32960, 35200, 36256, 41200, 44000, 45320, 51500, 56650, 65920, 72512, 82400, 88000, 90640, 103000, 113300, 141625, 145024, 164800, 176000, 181280, 206000, 226600, 283250, 329600, 362560, 412000, 453200, 566500, 725120, 824000, 906400, 1133000, 1648000, 1812800, 2266000, 3625600, 4532000, 9064000, 18128000]

約数ペア:

[(1, 18128000), (2, 9064000), (4, 4532000), (5, 3625600), (8, 2266000), (10, 1812800), (11, 1648000), (16, 1133000), (20, 906400), (22, 824000), (25, 725120), (32, 566500), (40, 453200), (44, 412000), (50, 362560), (55, 329600), (64, 283250), (80, 226600), (88, 206000), (100, 181280), (103, 176000), (110, 164800), (125, 145024), (128, 141625), (160, 113300), (176, 103000), (200, 90640), (206, 88000), (220, 82400), (250, 72512), (275, 65920), (320, 56650), (352, 51500), (400, 45320), (412, 44000), (440, 41200), (500, 36256), (515, 35200), (550, 32960), (640, 28325), (704, 25750), (800, 22660), (824, 22000), (880, 20600), (1000, 18128), (1030, 17600), (1100, 16480), (1133, 16000), (1375, 13184), (1408, 12875), (1600, 11330), (1648, 11000), (1760, 10300), (2000, 9064), (2060, 8800), (2200, 8240), (2266, 8000), (2575, 7040), (2750, 6592), (3200, 5665), (3296, 5500), (3520, 5150), (4000, 4532), (4120, 4400)]