20686682020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1\times {\mathrm{733}}^1$

素因数の和:1181

約数の個数: 96

約数和(自身を含む): 45078921216

約数和(自身を除く): 24392239196

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 127, 164, 205, 254, 271, 410, 508, 542, 635, 733, 820, 1084, 1270, 1355, 1466, 2540, 2710, 2932, 3665, 5207, 5420, 7330, 10414, 11111, 14660, 20828, 22222, 26035, 30053, 34417, 44444, 52070, 55555, 60106, 68834, 93091, 104140, 111110, 120212, 137668, 150265, 172085, 186182, 198643, 222220, 300530, 344170, 372364, 397286, 465455, 601060, 688340, 794572, 930910, 993215, 1411097, 1861820, 1986430, 2822194, 3816731, 3972860, 5644388, 7055485, 7633462, 8144363, 14110970, 15266924, 16288726, 19083655, 25227661, 28221940, 32577452, 38167310, 40721815, 50455322, 76334620, 81443630, 100910644, 126138305, 162887260, 252276610, 504553220, 1034334101, 2068668202, 4137336404, 5171670505, 10343341010, 20686682020]

約数ペア:

[(1, 20686682020), (2, 10343341010), (4, 5171670505), (5, 4137336404), (10, 2068668202), (20, 1034334101), (41, 504553220), (82, 252276610), (127, 162887260), (164, 126138305), (205, 100910644), (254, 81443630), (271, 76334620), (410, 50455322), (508, 40721815), (542, 38167310), (635, 32577452), (733, 28221940), (820, 25227661), (1084, 19083655), (1270, 16288726), (1355, 15266924), (1466, 14110970), (2540, 8144363), (2710, 7633462), (2932, 7055485), (3665, 5644388), (5207, 3972860), (5420, 3816731), (7330, 2822194), (10414, 1986430), (11111, 1861820), (14660, 1411097), (20828, 993215), (22222, 930910), (26035, 794572), (30053, 688340), (34417, 601060), (44444, 465455), (52070, 397286), (55555, 372364), (60106, 344170), (68834, 300530), (93091, 222220), (104140, 198643), (111110, 186182), (120212, 172085), (137668, 150265)]