164056720

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{9719}}^1$

素因数の和:9943

約数の個数: 40

約数和(自身を含む): 383279040

約数和(自身を除く): 219222320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 1055, 1688, 2110, 3376, 4220, 8440, 9719, 16880, 19438, 38876, 48595, 77752, 97190, 155504, 194380, 388760, 777520, 2050709, 4101418, 8202836, 10253545, 16405672, 20507090, 32811344, 41014180, 82028360, 164056720]

約数ペア:

[(1, 164056720), (2, 82028360), (4, 41014180), (5, 32811344), (8, 20507090), (10, 16405672), (16, 10253545), (20, 8202836), (40, 4101418), (80, 2050709), (211, 777520), (422, 388760), (844, 194380), (1055, 155504), (1688, 97190), (2110, 77752), (3376, 48595), (4220, 38876), (8440, 19438), (9719, 16880)]