20148177520

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{523}}^1\times {\mathrm{1831}}^1$

素因数の和:2630

約数の個数: 80

約数和(自身を含む): 47138268672

約数和(自身を除く): 26990091152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 523, 526, 1046, 1052, 1315, 1831, 2092, 2104, 2615, 2630, 3662, 4184, 4208, 5230, 5260, 7324, 8368, 9155, 10460, 10520, 14648, 18310, 20920, 21040, 29296, 36620, 41840, 73240, 137549, 146480, 275098, 481553, 550196, 687745, 957613, 963106, 1100392, 1375490, 1915226, 1926212, 2200784, 2407765, 2750980, 3830452, 3852424, 4788065, 4815530, 5501960, 7660904, 7704848, 9576130, 9631060, 11003920, 15321808, 19152260, 19262120, 38304520, 38524240, 76609040, 251852219, 503704438, 1007408876, 1259261095, 2014817752, 2518522190, 4029635504, 5037044380, 10074088760, 20148177520]

約数ペア:

[(1, 20148177520), (2, 10074088760), (4, 5037044380), (5, 4029635504), (8, 2518522190), (10, 2014817752), (16, 1259261095), (20, 1007408876), (40, 503704438), (80, 251852219), (263, 76609040), (523, 38524240), (526, 38304520), (1046, 19262120), (1052, 19152260), (1315, 15321808), (1831, 11003920), (2092, 9631060), (2104, 9576130), (2615, 7704848), (2630, 7660904), (3662, 5501960), (4184, 4815530), (4208, 4788065), (5230, 3852424), (5260, 3830452), (7324, 2750980), (8368, 2407765), (9155, 2200784), (10460, 1926212), (10520, 1915226), (14648, 1375490), (18310, 1100392), (20920, 963106), (21040, 957613), (29296, 687745), (36620, 550196), (41840, 481553), (73240, 275098), (137549, 146480)]