64156240

素因数分解:

$2^4\times 5^1\times {\mathrm{787}}^1\times {\mathrm{1019}}^1$

素因数の和:1819

約数の個数: 40

約数和(自身を含む): 149499360

約数和(自身を除く): 85343120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 787, 1019, 1574, 2038, 3148, 3935, 4076, 5095, 6296, 7870, 8152, 10190, 12592, 15740, 16304, 20380, 31480, 40760, 62960, 81520, 801953, 1603906, 3207812, 4009765, 6415624, 8019530, 12831248, 16039060, 32078120, 64156240]

約数ペア:

[(1, 64156240), (2, 32078120), (4, 16039060), (5, 12831248), (8, 8019530), (10, 6415624), (16, 4009765), (20, 3207812), (40, 1603906), (80, 801953), (787, 81520), (1019, 62960), (1574, 40760), (2038, 31480), (3148, 20380), (3935, 16304), (4076, 15740), (5095, 12592), (6296, 10190), (7870, 8152)]