4720820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{271}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 10875648

約数和(自身を除く): 6154828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 271, 335, 542, 670, 871, 1084, 1340, 1355, 1742, 2710, 3484, 3523, 4355, 5420, 7046, 8710, 14092, 17420, 17615, 18157, 35230, 36314, 70460, 72628, 90785, 181570, 236041, 363140, 472082, 944164, 1180205, 2360410, 4720820]

約数ペア:

[(1, 4720820), (2, 2360410), (4, 1180205), (5, 944164), (10, 472082), (13, 363140), (20, 236041), (26, 181570), (52, 90785), (65, 72628), (67, 70460), (130, 36314), (134, 35230), (260, 18157), (268, 17615), (271, 17420), (335, 14092), (542, 8710), (670, 7046), (871, 5420), (1084, 4355), (1340, 3523), (1355, 3484), (1742, 2710)]