161755250

素因数分解:

$2^1\times 5^3\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{367}}^1$

素因数の和:468

約数の個数: 64

約数和(自身を含む): 318269952

約数和(自身を除く): 156514702

約数列:

[1, 2, 5, 10, 25, 41, 43, 50, 82, 86, 125, 205, 215, 250, 367, 410, 430, 734, 1025, 1075, 1763, 1835, 2050, 2150, 3526, 3670, 5125, 5375, 8815, 9175, 10250, 10750, 15047, 15781, 17630, 18350, 30094, 31562, 44075, 45875, 75235, 78905, 88150, 91750, 150470, 157810, 220375, 376175, 394525, 440750, 647021, 752350, 789050, 1294042, 1880875, 1972625, 3235105, 3761750, 3945250, 6470210, 16175525, 32351050, 80877625, 161755250]

約数ペア:

[(1, 161755250), (2, 80877625), (5, 32351050), (10, 16175525), (25, 6470210), (41, 3945250), (43, 3761750), (50, 3235105), (82, 1972625), (86, 1880875), (125, 1294042), (205, 789050), (215, 752350), (250, 647021), (367, 440750), (410, 394525), (430, 376175), (734, 220375), (1025, 157810), (1075, 150470), (1763, 91750), (1835, 88150), (2050, 78905), (2150, 75235), (3526, 45875), (3670, 44075), (5125, 31562), (5375, 30094), (8815, 18350), (9175, 17630), (10250, 15781), (10750, 15047)]