21985440

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{281}}^1$

素因数の和:462

約数の個数: 96

約数和(自身を含む): 69926976

約数和(自身を除く): 47941536

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 163, 240, 281, 326, 480, 489, 562, 652, 815, 843, 978, 1124, 1304, 1405, 1630, 1686, 1956, 2248, 2445, 2608, 2810, 3260, 3372, 3912, 4215, 4496, 4890, 5216, 5620, 6520, 6744, 7824, 8430, 8992, 9780, 11240, 13040, 13488, 15648, 16860, 19560, 22480, 26080, 26976, 33720, 39120, 44960, 45803, 67440, 78240, 91606, 134880, 137409, 183212, 229015, 274818, 366424, 458030, 549636, 687045, 732848, 916060, 1099272, 1374090, 1465696, 1832120, 2198544, 2748180, 3664240, 4397088, 5496360, 7328480, 10992720, 21985440]

約数ペア:

[(1, 21985440), (2, 10992720), (3, 7328480), (4, 5496360), (5, 4397088), (6, 3664240), (8, 2748180), (10, 2198544), (12, 1832120), (15, 1465696), (16, 1374090), (20, 1099272), (24, 916060), (30, 732848), (32, 687045), (40, 549636), (48, 458030), (60, 366424), (80, 274818), (96, 229015), (120, 183212), (160, 137409), (163, 134880), (240, 91606), (281, 78240), (326, 67440), (480, 45803), (489, 44960), (562, 39120), (652, 33720), (815, 26976), (843, 26080), (978, 22480), (1124, 19560), (1304, 16860), (1405, 15648), (1630, 13488), (1686, 13040), (1956, 11240), (2248, 9780), (2445, 8992), (2608, 8430), (2810, 7824), (3260, 6744), (3372, 6520), (3912, 5620), (4215, 5216), (4496, 4890)]