20835720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1867}}^1$

素因数の和:1915

約数の個数: 96

約数和(自身を含む): 69937920

約数和(自身を除く): 49102200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 744, 930, 1116, 1240, 1395, 1860, 1867, 2232, 2790, 3720, 3734, 5580, 5601, 7468, 9335, 11160, 11202, 14936, 16803, 18670, 22404, 28005, 33606, 37340, 44808, 56010, 57877, 67212, 74680, 84015, 112020, 115754, 134424, 168030, 173631, 224040, 231508, 289385, 336060, 347262, 463016, 520893, 578770, 672120, 694524, 868155, 1041786, 1157540, 1389048, 1736310, 2083572, 2315080, 2604465, 3472620, 4167144, 5208930, 6945240, 10417860, 20835720]

約数ペア:

[(1, 20835720), (2, 10417860), (3, 6945240), (4, 5208930), (5, 4167144), (6, 3472620), (8, 2604465), (9, 2315080), (10, 2083572), (12, 1736310), (15, 1389048), (18, 1157540), (20, 1041786), (24, 868155), (30, 694524), (31, 672120), (36, 578770), (40, 520893), (45, 463016), (60, 347262), (62, 336060), (72, 289385), (90, 231508), (93, 224040), (120, 173631), (124, 168030), (155, 134424), (180, 115754), (186, 112020), (248, 84015), (279, 74680), (310, 67212), (360, 57877), (372, 56010), (465, 44808), (558, 37340), (620, 33606), (744, 28005), (930, 22404), (1116, 18670), (1240, 16803), (1395, 14936), (1860, 11202), (1867, 11160), (2232, 9335), (2790, 7468), (3720, 5601), (3734, 5580)]