138410380

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1\times {\mathrm{367}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 295827840

約数和(自身を除く): 157417460

約数列:

[1, 2, 4, 5, 10, 20, 109, 173, 218, 346, 367, 436, 545, 692, 734, 865, 1090, 1468, 1730, 1835, 2180, 3460, 3670, 7340, 18857, 37714, 40003, 63491, 75428, 80006, 94285, 126982, 160012, 188570, 200015, 253964, 317455, 377140, 400030, 634910, 800060, 1269820, 6920519, 13841038, 27682076, 34602595, 69205190, 138410380]

約数ペア:

[(1, 138410380), (2, 69205190), (4, 34602595), (5, 27682076), (10, 13841038), (20, 6920519), (109, 1269820), (173, 800060), (218, 634910), (346, 400030), (367, 377140), (436, 317455), (545, 253964), (692, 200015), (734, 188570), (865, 160012), (1090, 126982), (1468, 94285), (1730, 80006), (1835, 75428), (2180, 63491), (3460, 40003), (3670, 37714), (7340, 18857)]