2947840

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{47}}^1$

素因数の和:82

約数の個数: 108

約数和(自身を含む): 8388576

約数和(自身を除く): 5440736

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 47, 49, 56, 64, 70, 80, 94, 98, 112, 128, 140, 160, 188, 196, 224, 235, 245, 256, 280, 320, 329, 376, 392, 448, 470, 490, 560, 640, 658, 752, 784, 896, 940, 980, 1120, 1280, 1316, 1504, 1568, 1645, 1792, 1880, 1960, 2240, 2303, 2632, 3008, 3136, 3290, 3760, 3920, 4480, 4606, 5264, 6016, 6272, 6580, 7520, 7840, 8960, 9212, 10528, 11515, 12032, 12544, 13160, 15040, 15680, 18424, 21056, 23030, 26320, 30080, 31360, 36848, 42112, 46060, 52640, 60160, 62720, 73696, 84224, 92120, 105280, 147392, 184240, 210560, 294784, 368480, 421120, 589568, 736960, 1473920, 2947840]

約数ペア:

[(1, 2947840), (2, 1473920), (4, 736960), (5, 589568), (7, 421120), (8, 368480), (10, 294784), (14, 210560), (16, 184240), (20, 147392), (28, 105280), (32, 92120), (35, 84224), (40, 73696), (47, 62720), (49, 60160), (56, 52640), (64, 46060), (70, 42112), (80, 36848), (94, 31360), (98, 30080), (112, 26320), (128, 23030), (140, 21056), (160, 18424), (188, 15680), (196, 15040), (224, 13160), (235, 12544), (245, 12032), (256, 11515), (280, 10528), (320, 9212), (329, 8960), (376, 7840), (392, 7520), (448, 6580), (470, 6272), (490, 6016), (560, 5264), (640, 4606), (658, 4480), (752, 3920), (784, 3760), (896, 3290), (940, 3136), (980, 3008), (1120, 2632), (1280, 2303), (1316, 2240), (1504, 1960), (1568, 1880), (1645, 1792)]