388670440

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{46051}}^1$

素因数の和:46273

約数の個数: 32

約数和(自身を含む): 878672160

約数和(自身を除く): 490001720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 46051, 92102, 184204, 230255, 368408, 460510, 921020, 1842040, 9716761, 19433522, 38867044, 48583805, 77734088, 97167610, 194335220, 388670440]

約数ペア:

[(1, 388670440), (2, 194335220), (4, 97167610), (5, 77734088), (8, 48583805), (10, 38867044), (20, 19433522), (40, 9716761), (211, 1842040), (422, 921020), (844, 460510), (1055, 368408), (1688, 230255), (2110, 184204), (4220, 92102), (8440, 46051)]