20813160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7541}}^1$

素因数の和:7578

約数の個数: 64

約数和(自身を含む): 65162880

約数和(自身を除く): 44349720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 7541, 15082, 22623, 30164, 37705, 45246, 60328, 75410, 90492, 113115, 150820, 173443, 180984, 226230, 301640, 346886, 452460, 520329, 693772, 867215, 904920, 1040658, 1387544, 1734430, 2081316, 2601645, 3468860, 4162632, 5203290, 6937720, 10406580, 20813160]

約数ペア:

[(1, 20813160), (2, 10406580), (3, 6937720), (4, 5203290), (5, 4162632), (6, 3468860), (8, 2601645), (10, 2081316), (12, 1734430), (15, 1387544), (20, 1040658), (23, 904920), (24, 867215), (30, 693772), (40, 520329), (46, 452460), (60, 346886), (69, 301640), (92, 226230), (115, 180984), (120, 173443), (138, 150820), (184, 113115), (230, 90492), (276, 75410), (345, 60328), (460, 45246), (552, 37705), (690, 30164), (920, 22623), (1380, 15082), (2760, 7541)]