18907840

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{367}}^1$

素因数の和:414

約数の個数: 112

約数和(自身を含む): 53839872

約数和(自身を除く): 34932032

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 140, 160, 161, 184, 224, 230, 280, 320, 322, 367, 368, 448, 460, 560, 644, 734, 736, 805, 920, 1120, 1288, 1468, 1472, 1610, 1835, 1840, 2240, 2569, 2576, 2936, 3220, 3670, 3680, 5138, 5152, 5872, 6440, 7340, 7360, 8441, 10276, 10304, 11744, 12845, 12880, 14680, 16882, 20552, 23488, 25690, 25760, 29360, 33764, 41104, 42205, 51380, 51520, 58720, 59087, 67528, 82208, 84410, 102760, 117440, 118174, 135056, 164416, 168820, 205520, 236348, 270112, 295435, 337640, 411040, 472696, 540224, 590870, 675280, 822080, 945392, 1181740, 1350560, 1890784, 2363480, 2701120, 3781568, 4726960, 9453920, 18907840]

約数ペア:

[(1, 18907840), (2, 9453920), (4, 4726960), (5, 3781568), (7, 2701120), (8, 2363480), (10, 1890784), (14, 1350560), (16, 1181740), (20, 945392), (23, 822080), (28, 675280), (32, 590870), (35, 540224), (40, 472696), (46, 411040), (56, 337640), (64, 295435), (70, 270112), (80, 236348), (92, 205520), (112, 168820), (115, 164416), (140, 135056), (160, 118174), (161, 117440), (184, 102760), (224, 84410), (230, 82208), (280, 67528), (320, 59087), (322, 58720), (367, 51520), (368, 51380), (448, 42205), (460, 41104), (560, 33764), (644, 29360), (734, 25760), (736, 25690), (805, 23488), (920, 20552), (1120, 16882), (1288, 14680), (1468, 12880), (1472, 12845), (1610, 11744), (1835, 10304), (1840, 10276), (2240, 8441), (2569, 7360), (2576, 7340), (2936, 6440), (3220, 5872), (3670, 5152), (3680, 5138)]