19720704

素因数分解:

$2^9\times 3^1\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:405

約数の個数: 80

約数和(自身を含む): 54112608

約数和(自身を除く): 34391904

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 37, 48, 64, 74, 96, 111, 128, 148, 192, 222, 256, 296, 347, 384, 444, 512, 592, 694, 768, 888, 1041, 1184, 1388, 1536, 1776, 2082, 2368, 2776, 3552, 4164, 4736, 5552, 7104, 8328, 9472, 11104, 12839, 14208, 16656, 18944, 22208, 25678, 28416, 33312, 38517, 44416, 51356, 56832, 66624, 77034, 88832, 102712, 133248, 154068, 177664, 205424, 266496, 308136, 410848, 532992, 616272, 821696, 1232544, 1643392, 2465088, 3286784, 4930176, 6573568, 9860352, 19720704]

約数ペア:

[(1, 19720704), (2, 9860352), (3, 6573568), (4, 4930176), (6, 3286784), (8, 2465088), (12, 1643392), (16, 1232544), (24, 821696), (32, 616272), (37, 532992), (48, 410848), (64, 308136), (74, 266496), (96, 205424), (111, 177664), (128, 154068), (148, 133248), (192, 102712), (222, 88832), (256, 77034), (296, 66624), (347, 56832), (384, 51356), (444, 44416), (512, 38517), (592, 33312), (694, 28416), (768, 25678), (888, 22208), (1041, 18944), (1184, 16656), (1388, 14208), (1536, 12839), (1776, 11104), (2082, 9472), (2368, 8328), (2776, 7104), (3552, 5552), (4164, 4736)]