20806112240

素因数分解:

$2^4\times 5^1\times {\mathrm{479}}^1\times {\mathrm{577}}^1\times {\mathrm{941}}^1$

素因数の和:2010

約数の個数: 80

約数和(自身を含む): 48610817280

約数和(自身を除く): 27804705040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 479, 577, 941, 958, 1154, 1882, 1916, 2308, 2395, 2885, 3764, 3832, 4616, 4705, 4790, 5770, 7528, 7664, 9232, 9410, 9580, 11540, 15056, 18820, 19160, 23080, 37640, 38320, 46160, 75280, 276383, 450739, 542957, 552766, 901478, 1085914, 1105532, 1381915, 1802956, 2171828, 2211064, 2253695, 2714785, 2763830, 3605912, 4343656, 4422128, 4507390, 5429570, 5527660, 7211824, 8687312, 9014780, 10859140, 11055320, 18029560, 21718280, 22110640, 36059120, 43436560, 260076403, 520152806, 1040305612, 1300382015, 2080611224, 2600764030, 4161222448, 5201528060, 10403056120, 20806112240]

約数ペア:

[(1, 20806112240), (2, 10403056120), (4, 5201528060), (5, 4161222448), (8, 2600764030), (10, 2080611224), (16, 1300382015), (20, 1040305612), (40, 520152806), (80, 260076403), (479, 43436560), (577, 36059120), (941, 22110640), (958, 21718280), (1154, 18029560), (1882, 11055320), (1916, 10859140), (2308, 9014780), (2395, 8687312), (2885, 7211824), (3764, 5527660), (3832, 5429570), (4616, 4507390), (4705, 4422128), (4790, 4343656), (5770, 3605912), (7528, 2763830), (7664, 2714785), (9232, 2253695), (9410, 2211064), (9580, 2171828), (11540, 1802956), (15056, 1381915), (18820, 1105532), (19160, 1085914), (23080, 901478), (37640, 552766), (38320, 542957), (46160, 450739), (75280, 276383)]