20520496

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2039}}^1$

素因数の和:2101

約数の個数: 40

約数和(自身を含む): 43256160

約数和(自身を除く): 22735664

約数列:

[1, 2, 4, 8, 16, 17, 34, 37, 68, 74, 136, 148, 272, 296, 592, 629, 1258, 2039, 2516, 4078, 5032, 8156, 10064, 16312, 32624, 34663, 69326, 75443, 138652, 150886, 277304, 301772, 554608, 603544, 1207088, 1282531, 2565062, 5130124, 10260248, 20520496]

約数ペア:

[(1, 20520496), (2, 10260248), (4, 5130124), (8, 2565062), (16, 1282531), (17, 1207088), (34, 603544), (37, 554608), (68, 301772), (74, 277304), (136, 150886), (148, 138652), (272, 75443), (296, 69326), (592, 34663), (629, 32624), (1258, 16312), (2039, 10064), (2516, 8156), (4078, 5032)]