78412880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10771}}^1$

素因数の和:10804

約数の個数: 80

約数和(自身を含む): 224402304

約数和(自身を除く): 145989424

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 10771, 21542, 43084, 53855, 75397, 86168, 107710, 140023, 150794, 172336, 215420, 280046, 301588, 376985, 430840, 560092, 603176, 700115, 753970, 861680, 980161, 1120184, 1206352, 1400230, 1507940, 1960322, 2240368, 2800460, 3015880, 3920644, 4900805, 5600920, 6031760, 7841288, 9801610, 11201840, 15682576, 19603220, 39206440, 78412880]

約数ペア:

[(1, 78412880), (2, 39206440), (4, 19603220), (5, 15682576), (7, 11201840), (8, 9801610), (10, 7841288), (13, 6031760), (14, 5600920), (16, 4900805), (20, 3920644), (26, 3015880), (28, 2800460), (35, 2240368), (40, 1960322), (52, 1507940), (56, 1400230), (65, 1206352), (70, 1120184), (80, 980161), (91, 861680), (104, 753970), (112, 700115), (130, 603176), (140, 560092), (182, 430840), (208, 376985), (260, 301588), (280, 280046), (364, 215420), (455, 172336), (520, 150794), (560, 140023), (728, 107710), (910, 86168), (1040, 75397), (1456, 53855), (1820, 43084), (3640, 21542), (7280, 10771)]