81101680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4007}}^1$

素因数の和:4054

約数の個数: 80

約数和(自身を含む): 214700544

約数和(自身を除く): 133598864

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 80, 88, 92, 110, 115, 176, 184, 220, 230, 253, 368, 440, 460, 506, 880, 920, 1012, 1265, 1840, 2024, 2530, 4007, 4048, 5060, 8014, 10120, 16028, 20035, 20240, 32056, 40070, 44077, 64112, 80140, 88154, 92161, 160280, 176308, 184322, 220385, 320560, 352616, 368644, 440770, 460805, 705232, 737288, 881540, 921610, 1013771, 1474576, 1763080, 1843220, 2027542, 3526160, 3686440, 4055084, 5068855, 7372880, 8110168, 10137710, 16220336, 20275420, 40550840, 81101680]

約数ペア:

[(1, 81101680), (2, 40550840), (4, 20275420), (5, 16220336), (8, 10137710), (10, 8110168), (11, 7372880), (16, 5068855), (20, 4055084), (22, 3686440), (23, 3526160), (40, 2027542), (44, 1843220), (46, 1763080), (55, 1474576), (80, 1013771), (88, 921610), (92, 881540), (110, 737288), (115, 705232), (176, 460805), (184, 440770), (220, 368644), (230, 352616), (253, 320560), (368, 220385), (440, 184322), (460, 176308), (506, 160280), (880, 92161), (920, 88154), (1012, 80140), (1265, 64112), (1840, 44077), (2024, 40070), (2530, 32056), (4007, 20240), (4048, 20035), (5060, 16028), (8014, 10120)]