72270440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{164251}}^1$

素因数の和:164273

約数の個数: 32

約数和(自身を含む): 177392160

約数和(自身を除く): 105121720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 164251, 328502, 657004, 821255, 1314008, 1642510, 1806761, 3285020, 3613522, 6570040, 7227044, 9033805, 14454088, 18067610, 36135220, 72270440]

約数ペア:

[(1, 72270440), (2, 36135220), (4, 18067610), (5, 14454088), (8, 9033805), (10, 7227044), (11, 6570040), (20, 3613522), (22, 3285020), (40, 1806761), (44, 1642510), (55, 1314008), (88, 821255), (110, 657004), (220, 328502), (440, 164251)]