20215005280

素因数分解:

$2^5\times 5^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1\times {\mathrm{3323}}^1$

素因数の和:3728

約数の個数: 96

約数和(自身を含む): 48263602464

約数和(自身を除く): 28048597184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 193, 197, 386, 394, 772, 788, 965, 985, 1544, 1576, 1930, 1970, 3088, 3152, 3323, 3860, 3940, 6176, 6304, 6646, 7720, 7880, 13292, 15440, 15760, 16615, 26584, 30880, 31520, 33230, 38021, 53168, 66460, 76042, 106336, 132920, 152084, 190105, 265840, 304168, 380210, 531680, 608336, 641339, 654631, 760420, 1216672, 1282678, 1309262, 1520840, 2565356, 2618524, 3041680, 3206695, 3273155, 5130712, 5237048, 6083360, 6413390, 6546310, 10261424, 10474096, 12826780, 13092620, 20522848, 20948192, 25653560, 26185240, 51307120, 52370480, 102614240, 104740960, 126343783, 252687566, 505375132, 631718915, 1010750264, 1263437830, 2021500528, 2526875660, 4043001056, 5053751320, 10107502640, 20215005280]

約数ペア:

[(1, 20215005280), (2, 10107502640), (4, 5053751320), (5, 4043001056), (8, 2526875660), (10, 2021500528), (16, 1263437830), (20, 1010750264), (32, 631718915), (40, 505375132), (80, 252687566), (160, 126343783), (193, 104740960), (197, 102614240), (386, 52370480), (394, 51307120), (772, 26185240), (788, 25653560), (965, 20948192), (985, 20522848), (1544, 13092620), (1576, 12826780), (1930, 10474096), (1970, 10261424), (3088, 6546310), (3152, 6413390), (3323, 6083360), (3860, 5237048), (3940, 5130712), (6176, 3273155), (6304, 3206695), (6646, 3041680), (7720, 2618524), (7880, 2565356), (13292, 1520840), (15440, 1309262), (15760, 1282678), (16615, 1216672), (26584, 760420), (30880, 654631), (31520, 641339), (33230, 608336), (38021, 531680), (53168, 380210), (66460, 304168), (76042, 265840), (106336, 190105), (132920, 152084)]