20152881520

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{45827}}^1$

素因数の和:46102

約数の個数: 80

約数和(自身を含む): 49098286080

約数和(自身を除く): 28945404560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 239, 368, 460, 478, 920, 956, 1195, 1840, 1912, 2390, 3824, 4780, 5497, 9560, 10994, 19120, 21988, 27485, 43976, 45827, 54970, 87952, 91654, 109940, 183308, 219880, 229135, 366616, 439760, 458270, 733232, 916540, 1054021, 1833080, 2108042, 3666160, 4216084, 5270105, 8432168, 10540210, 10952653, 16864336, 21080420, 21905306, 42160840, 43810612, 54763265, 84321680, 87621224, 109526530, 175242448, 219053060, 251911019, 438106120, 503822038, 876212240, 1007644076, 1259555095, 2015288152, 2519110190, 4030576304, 5038220380, 10076440760, 20152881520]

約数ペア:

[(1, 20152881520), (2, 10076440760), (4, 5038220380), (5, 4030576304), (8, 2519110190), (10, 2015288152), (16, 1259555095), (20, 1007644076), (23, 876212240), (40, 503822038), (46, 438106120), (80, 251911019), (92, 219053060), (115, 175242448), (184, 109526530), (230, 87621224), (239, 84321680), (368, 54763265), (460, 43810612), (478, 42160840), (920, 21905306), (956, 21080420), (1195, 16864336), (1840, 10952653), (1912, 10540210), (2390, 8432168), (3824, 5270105), (4780, 4216084), (5497, 3666160), (9560, 2108042), (10994, 1833080), (19120, 1054021), (21988, 916540), (27485, 733232), (43976, 458270), (45827, 439760), (54970, 366616), (87952, 229135), (91654, 219880), (109940, 183308)]