20541760

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2791}}^1$

素因数の和:2831

約数の個数: 56

約数和(自身を含む): 51060096

約数和(自身を除く): 30518336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 736, 920, 1472, 1840, 2791, 3680, 5582, 7360, 11164, 13955, 22328, 27910, 44656, 55820, 64193, 89312, 111640, 128386, 178624, 223280, 256772, 320965, 446560, 513544, 641930, 893120, 1027088, 1283860, 2054176, 2567720, 4108352, 5135440, 10270880, 20541760]

約数ペア:

[(1, 20541760), (2, 10270880), (4, 5135440), (5, 4108352), (8, 2567720), (10, 2054176), (16, 1283860), (20, 1027088), (23, 893120), (32, 641930), (40, 513544), (46, 446560), (64, 320965), (80, 256772), (92, 223280), (115, 178624), (160, 128386), (184, 111640), (230, 89312), (320, 64193), (368, 55820), (460, 44656), (736, 27910), (920, 22328), (1472, 13955), (1840, 11164), (2791, 7360), (3680, 5582)]