40540720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2003}}^1$

素因数の和:2050

約数の個数: 80

約数和(自身を含む): 107350272

約数和(自身を除く): 66809552

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, 2003, 2024, 2530, 4006, 4048, 5060, 8012, 10015, 10120, 16024, 20030, 20240, 22033, 32048, 40060, 44066, 46069, 80120, 88132, 92138, 110165, 160240, 176264, 184276, 220330, 230345, 352528, 368552, 440660, 460690, 506759, 737104, 881320, 921380, 1013518, 1762640, 1842760, 2027036, 2533795, 3685520, 4054072, 5067590, 8108144, 10135180, 20270360, 40540720]

約数ペア:

[(1, 40540720), (2, 20270360), (4, 10135180), (5, 8108144), (8, 5067590), (10, 4054072), (11, 3685520), (16, 2533795), (20, 2027036), (22, 1842760), (23, 1762640), (40, 1013518), (44, 921380), (46, 881320), (55, 737104), (80, 506759), (88, 460690), (92, 440660), (110, 368552), (115, 352528), (176, 230345), (184, 220330), (220, 184276), (230, 176264), (253, 160240), (368, 110165), (440, 92138), (460, 88132), (506, 80120), (880, 46069), (920, 44066), (1012, 40060), (1265, 32048), (1840, 22033), (2003, 20240), (2024, 20030), (2530, 16024), (4006, 10120), (4048, 10015), (5060, 8012)]