20534276

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{577}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 43502592

約数和(自身を除く): 22968316

約数列:

[1, 2, 4, 7, 14, 28, 31, 41, 62, 82, 124, 164, 217, 287, 434, 574, 577, 868, 1148, 1154, 1271, 2308, 2542, 4039, 5084, 8078, 8897, 16156, 17794, 17887, 23657, 35588, 35774, 47314, 71548, 94628, 125209, 165599, 250418, 331198, 500836, 662396, 733367, 1466734, 2933468, 5133569, 10267138, 20534276]

約数ペア:

[(1, 20534276), (2, 10267138), (4, 5133569), (7, 2933468), (14, 1466734), (28, 733367), (31, 662396), (41, 500836), (62, 331198), (82, 250418), (124, 165599), (164, 125209), (217, 94628), (287, 71548), (434, 47314), (574, 35774), (577, 35588), (868, 23657), (1148, 17887), (1154, 17794), (1271, 16156), (2308, 8897), (2542, 8078), (4039, 5084)]