20830487024

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1\times {\mathrm{991}}^1$

素因数の和:1626

約数の個数: 80

約数和(自身を含む): 42345504000

約数和(自身を除く): 21515016976

約数列:

[1, 2, 4, 8, 16, 29, 58, 89, 116, 178, 232, 356, 464, 509, 712, 991, 1018, 1424, 1982, 2036, 2581, 3964, 4072, 5162, 7928, 8144, 10324, 14761, 15856, 20648, 28739, 29522, 41296, 45301, 57478, 59044, 88199, 90602, 114956, 118088, 176398, 181204, 229912, 236176, 352796, 362408, 459824, 504419, 705592, 724816, 1008838, 1313729, 1411184, 2017676, 2557771, 2627458, 4035352, 5115542, 5254916, 8070704, 10231084, 10509832, 14628151, 20462168, 21019664, 29256302, 40924336, 44893291, 58512604, 89786582, 117025208, 179573164, 234050416, 359146328, 718292656, 1301905439, 2603810878, 5207621756, 10415243512, 20830487024]

約数ペア:

[(1, 20830487024), (2, 10415243512), (4, 5207621756), (8, 2603810878), (16, 1301905439), (29, 718292656), (58, 359146328), (89, 234050416), (116, 179573164), (178, 117025208), (232, 89786582), (356, 58512604), (464, 44893291), (509, 40924336), (712, 29256302), (991, 21019664), (1018, 20462168), (1424, 14628151), (1982, 10509832), (2036, 10231084), (2581, 8070704), (3964, 5254916), (4072, 5115542), (5162, 4035352), (7928, 2627458), (8144, 2557771), (10324, 2017676), (14761, 1411184), (15856, 1313729), (20648, 1008838), (28739, 724816), (29522, 705592), (41296, 504419), (45301, 459824), (57478, 362408), (59044, 352796), (88199, 236176), (90602, 229912), (114956, 181204), (118088, 176398)]