20840760

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{839}}^1$

素因数の和:882

約数の個数: 128

約数和(自身を含む): 72576000

約数和(自身を除く): 51735240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 54, 60, 69, 72, 90, 92, 108, 115, 120, 135, 138, 180, 184, 207, 216, 230, 270, 276, 345, 360, 414, 460, 540, 552, 621, 690, 828, 839, 920, 1035, 1080, 1242, 1380, 1656, 1678, 2070, 2484, 2517, 2760, 3105, 3356, 4140, 4195, 4968, 5034, 6210, 6712, 7551, 8280, 8390, 10068, 12420, 12585, 15102, 16780, 19297, 20136, 22653, 24840, 25170, 30204, 33560, 37755, 38594, 45306, 50340, 57891, 60408, 75510, 77188, 90612, 96485, 100680, 113265, 115782, 151020, 154376, 173673, 181224, 192970, 226530, 231564, 289455, 302040, 347346, 385940, 453060, 463128, 521019, 578910, 694692, 771880, 868365, 906120, 1042038, 1157820, 1389384, 1736730, 2084076, 2315640, 2605095, 3473460, 4168152, 5210190, 6946920, 10420380, 20840760]

約数ペア:

[(1, 20840760), (2, 10420380), (3, 6946920), (4, 5210190), (5, 4168152), (6, 3473460), (8, 2605095), (9, 2315640), (10, 2084076), (12, 1736730), (15, 1389384), (18, 1157820), (20, 1042038), (23, 906120), (24, 868365), (27, 771880), (30, 694692), (36, 578910), (40, 521019), (45, 463128), (46, 453060), (54, 385940), (60, 347346), (69, 302040), (72, 289455), (90, 231564), (92, 226530), (108, 192970), (115, 181224), (120, 173673), (135, 154376), (138, 151020), (180, 115782), (184, 113265), (207, 100680), (216, 96485), (230, 90612), (270, 77188), (276, 75510), (345, 60408), (360, 57891), (414, 50340), (460, 45306), (540, 38594), (552, 37755), (621, 33560), (690, 30204), (828, 25170), (839, 24840), (920, 22653), (1035, 20136), (1080, 19297), (1242, 16780), (1380, 15102), (1656, 12585), (1678, 12420), (2070, 10068), (2484, 8390), (2517, 8280), (2760, 7551), (3105, 6712), (3356, 6210), (4140, 5034), (4195, 4968)]