168977240

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{20021}}^1$

素因数の和:20243

約数の個数: 32

約数和(自身を含む): 382019760

約数和(自身を除く): 213042520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 20021, 40042, 80084, 100105, 160168, 200210, 400420, 800840, 4224431, 8448862, 16897724, 21122155, 33795448, 42244310, 84488620, 168977240]

約数ペア:

[(1, 168977240), (2, 84488620), (4, 42244310), (5, 33795448), (8, 21122155), (10, 16897724), (20, 8448862), (40, 4224431), (211, 800840), (422, 400420), (844, 200210), (1055, 160168), (1688, 100105), (2110, 80084), (4220, 40042), (8440, 20021)]