161753240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{367621}}^1$

素因数の和:367643

約数の個数: 32

約数和(自身を含む): 397031760

約数和(自身を除く): 235278520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 367621, 735242, 1470484, 1838105, 2940968, 3676210, 4043831, 7352420, 8087662, 14704840, 16175324, 20219155, 32350648, 40438310, 80876620, 161753240]

約数ペア:

[(1, 161753240), (2, 80876620), (4, 40438310), (5, 32350648), (8, 20219155), (10, 16175324), (11, 14704840), (20, 8087662), (22, 7352420), (40, 4043831), (44, 3676210), (55, 2940968), (88, 1838105), (110, 1470484), (220, 735242), (440, 367621)]