20947320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1877}}^1$

素因数の和:1925

約数の個数: 96

約数和(自身を含む): 70312320

約数和(自身を除く): 49365000

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, 1877, 2232, 2790, 3720, 3754, 5580, 5631, 7508, 9385, 11160, 11262, 15016, 16893, 18770, 22524, 28155, 33786, 37540, 45048, 56310, 58187, 67572, 75080, 84465, 112620, 116374, 135144, 168930, 174561, 225240, 232748, 290935, 337860, 349122, 465496, 523683, 581870, 675720, 698244, 872805, 1047366, 1163740, 1396488, 1745610, 2094732, 2327480, 2618415, 3491220, 4189464, 5236830, 6982440, 10473660, 20947320]

約数ペア:

[(1, 20947320), (2, 10473660), (3, 6982440), (4, 5236830), (5, 4189464), (6, 3491220), (8, 2618415), (9, 2327480), (10, 2094732), (12, 1745610), (15, 1396488), (18, 1163740), (20, 1047366), (24, 872805), (30, 698244), (31, 675720), (36, 581870), (40, 523683), (45, 465496), (60, 349122), (62, 337860), (72, 290935), (90, 232748), (93, 225240), (120, 174561), (124, 168930), (155, 135144), (180, 116374), (186, 112620), (248, 84465), (279, 75080), (310, 67572), (360, 58187), (372, 56310), (465, 45048), (558, 37540), (620, 33786), (744, 28155), (930, 22524), (1116, 18770), (1240, 16893), (1395, 15016), (1860, 11262), (1877, 11160), (2232, 9385), (2790, 7508), (3720, 5631), (3754, 5580)]