20723138520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{2861}}^1\times {\mathrm{8623}}^1$

素因数の和:11505

約数の個数: 128

約数和(自身を含む): 71083837440

約数和(自身を除く): 50360698920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 2861, 5722, 8583, 8623, 11444, 14305, 17166, 17246, 20027, 22888, 25869, 28610, 34332, 34492, 40054, 42915, 43115, 51738, 57220, 60081, 60361, 68664, 68984, 80108, 85830, 86230, 100135, 103476, 114440, 120162, 120722, 129345, 160216, 171660, 172460, 181083, 200270, 206952, 240324, 241444, 258690, 300405, 301805, 343320, 344920, 362166, 400540, 480648, 482888, 517380, 600810, 603610, 724332, 801080, 905415, 1034760, 1201620, 1207220, 1448664, 1810830, 2403240, 2414440, 3621660, 7243320, 24670403, 49340806, 74011209, 98681612, 123352015, 148022418, 172692821, 197363224, 246704030, 296044836, 345385642, 370056045, 493408060, 518078463, 592089672, 690771284, 740112090, 863464105, 986816120, 1036156926, 1381542568, 1480224180, 1726928210, 2072313852, 2590392315, 2960448360, 3453856420, 4144627704, 5180784630, 6907712840, 10361569260, 20723138520]

約数ペア:

[(1, 20723138520), (2, 10361569260), (3, 6907712840), (4, 5180784630), (5, 4144627704), (6, 3453856420), (7, 2960448360), (8, 2590392315), (10, 2072313852), (12, 1726928210), (14, 1480224180), (15, 1381542568), (20, 1036156926), (21, 986816120), (24, 863464105), (28, 740112090), (30, 690771284), (35, 592089672), (40, 518078463), (42, 493408060), (56, 370056045), (60, 345385642), (70, 296044836), (84, 246704030), (105, 197363224), (120, 172692821), (140, 148022418), (168, 123352015), (210, 98681612), (280, 74011209), (420, 49340806), (840, 24670403), (2861, 7243320), (5722, 3621660), (8583, 2414440), (8623, 2403240), (11444, 1810830), (14305, 1448664), (17166, 1207220), (17246, 1201620), (20027, 1034760), (22888, 905415), (25869, 801080), (28610, 724332), (34332, 603610), (34492, 600810), (40054, 517380), (42915, 482888), (43115, 480648), (51738, 400540), (57220, 362166), (60081, 344920), (60361, 343320), (68664, 301805), (68984, 300405), (80108, 258690), (85830, 241444), (86230, 240324), (100135, 206952), (103476, 200270), (114440, 181083), (120162, 172460), (120722, 171660), (129345, 160216)]