155968100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:513

約数の個数: 72

約数和(自身を含む): 350889000

約数和(自身を除く): 194920900

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 109, 164, 205, 218, 349, 410, 436, 545, 698, 820, 1025, 1090, 1396, 1745, 2050, 2180, 2725, 3490, 4100, 4469, 5450, 6980, 8725, 8938, 10900, 14309, 17450, 17876, 22345, 28618, 34900, 38041, 44690, 57236, 71545, 76082, 89380, 111725, 143090, 152164, 190205, 223450, 286180, 357725, 380410, 446900, 715450, 760820, 951025, 1430900, 1559681, 1902050, 3119362, 3804100, 6238724, 7798405, 15596810, 31193620, 38992025, 77984050, 155968100]

約数ペア:

[(1, 155968100), (2, 77984050), (4, 38992025), (5, 31193620), (10, 15596810), (20, 7798405), (25, 6238724), (41, 3804100), (50, 3119362), (82, 1902050), (100, 1559681), (109, 1430900), (164, 951025), (205, 760820), (218, 715450), (349, 446900), (410, 380410), (436, 357725), (545, 286180), (698, 223450), (820, 190205), (1025, 152164), (1090, 143090), (1396, 111725), (1745, 89380), (2050, 76082), (2180, 71545), (2725, 57236), (3490, 44690), (4100, 38041), (4469, 34900), (5450, 28618), (6980, 22345), (8725, 17876), (8938, 17450), (10900, 14309)]