20304416

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1559}}^1$

素因数の和:1617

約数の個数: 48

約数和(自身を含む): 44815680

約数和(自身を除く): 24511264

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 37, 44, 74, 88, 148, 176, 296, 352, 407, 592, 814, 1184, 1559, 1628, 3118, 3256, 6236, 6512, 12472, 13024, 17149, 24944, 34298, 49888, 57683, 68596, 115366, 137192, 230732, 274384, 461464, 548768, 634513, 922928, 1269026, 1845856, 2538052, 5076104, 10152208, 20304416]

約数ペア:

[(1, 20304416), (2, 10152208), (4, 5076104), (8, 2538052), (11, 1845856), (16, 1269026), (22, 922928), (32, 634513), (37, 548768), (44, 461464), (74, 274384), (88, 230732), (148, 137192), (176, 115366), (296, 68596), (352, 57683), (407, 49888), (592, 34298), (814, 24944), (1184, 17149), (1559, 13024), (1628, 12472), (3118, 6512), (3256, 6236)]