179942440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109721}}^1$

素因数の和:109773

約数の個数: 32

約数和(自身を含む): 414749160

約数和(自身を除く): 234806720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 109721, 219442, 438884, 548605, 877768, 1097210, 2194420, 4388840, 4498561, 8997122, 17994244, 22492805, 35988488, 44985610, 89971220, 179942440]

約数ペア:

[(1, 179942440), (2, 89971220), (4, 44985610), (5, 35988488), (8, 22492805), (10, 17994244), (20, 8997122), (40, 4498561), (41, 4388840), (82, 2194420), (164, 1097210), (205, 877768), (328, 548605), (410, 438884), (820, 219442), (1640, 109721)]