20323168

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{521}}^1$

素因数の和:607

約数の個数: 48

約数和(自身を含む): 42620256

約数和(自身を除く): 22297088

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 53, 92, 106, 184, 212, 368, 424, 521, 736, 848, 1042, 1219, 1696, 2084, 2438, 4168, 4876, 8336, 9752, 11983, 16672, 19504, 23966, 27613, 39008, 47932, 55226, 95864, 110452, 191728, 220904, 383456, 441808, 635099, 883616, 1270198, 2540396, 5080792, 10161584, 20323168]

約数ペア:

[(1, 20323168), (2, 10161584), (4, 5080792), (8, 2540396), (16, 1270198), (23, 883616), (32, 635099), (46, 441808), (53, 383456), (92, 220904), (106, 191728), (184, 110452), (212, 95864), (368, 55226), (424, 47932), (521, 39008), (736, 27613), (848, 23966), (1042, 19504), (1219, 16672), (1696, 11983), (2084, 9752), (2438, 8336), (4168, 4876)]