81280680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52103}}^1$

素因数の和:52130

約数の個数: 64

約数和(自身を含む): 262604160

約数和(自身を除く): 181323480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 52103, 104206, 156309, 208412, 260515, 312618, 416824, 521030, 625236, 677339, 781545, 1042060, 1250472, 1354678, 1563090, 2032017, 2084120, 2709356, 3126180, 3386695, 4064034, 5418712, 6252360, 6773390, 8128068, 10160085, 13546780, 16256136, 20320170, 27093560, 40640340, 81280680]

約数ペア:

[(1, 81280680), (2, 40640340), (3, 27093560), (4, 20320170), (5, 16256136), (6, 13546780), (8, 10160085), (10, 8128068), (12, 6773390), (13, 6252360), (15, 5418712), (20, 4064034), (24, 3386695), (26, 3126180), (30, 2709356), (39, 2084120), (40, 2032017), (52, 1563090), (60, 1354678), (65, 1250472), (78, 1042060), (104, 781545), (120, 677339), (130, 625236), (156, 521030), (195, 416824), (260, 312618), (312, 260515), (390, 208412), (520, 156309), (780, 104206), (1560, 52103)]