646208280

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{199447}}^1$

素因数の和:199470

約数の個数: 80

約数和(自身を含む): 2171988720

約数和(自身を除く): 1525780440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 199447, 398894, 598341, 797788, 997235, 1196682, 1595576, 1795023, 1994470, 2393364, 2991705, 3590046, 3988940, 4786728, 5385069, 5983410, 7180092, 7977880, 8975115, 10770138, 11966820, 14360184, 16155207, 17950230, 21540276, 23933640, 26925345, 32310414, 35900460, 43080552, 53850690, 64620828, 71800920, 80776035, 107701380, 129241656, 161552070, 215402760, 323104140, 646208280]

約数ペア:

[(1, 646208280), (2, 323104140), (3, 215402760), (4, 161552070), (5, 129241656), (6, 107701380), (8, 80776035), (9, 71800920), (10, 64620828), (12, 53850690), (15, 43080552), (18, 35900460), (20, 32310414), (24, 26925345), (27, 23933640), (30, 21540276), (36, 17950230), (40, 16155207), (45, 14360184), (54, 11966820), (60, 10770138), (72, 8975115), (81, 7977880), (90, 7180092), (108, 5983410), (120, 5385069), (135, 4786728), (162, 3988940), (180, 3590046), (216, 2991705), (270, 2393364), (324, 1994470), (360, 1795023), (405, 1595576), (540, 1196682), (648, 997235), (810, 797788), (1080, 598341), (1620, 398894), (3240, 199447)]