28688060

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 62146560

約数和(自身を除く): 33458500

約数列:

[1, 2, 4, 5, 10, 20, 67, 79, 134, 158, 268, 271, 316, 335, 395, 542, 670, 790, 1084, 1340, 1355, 1580, 2710, 5293, 5420, 10586, 18157, 21172, 21409, 26465, 36314, 42818, 52930, 72628, 85636, 90785, 105860, 107045, 181570, 214090, 363140, 428180, 1434403, 2868806, 5737612, 7172015, 14344030, 28688060]

約数ペア:

[(1, 28688060), (2, 14344030), (4, 7172015), (5, 5737612), (10, 2868806), (20, 1434403), (67, 428180), (79, 363140), (134, 214090), (158, 181570), (268, 107045), (271, 105860), (316, 90785), (335, 85636), (395, 72628), (542, 52930), (670, 42818), (790, 36314), (1084, 26465), (1340, 21409), (1355, 21172), (1580, 18157), (2710, 10586), (5293, 5420)]