1621204920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{104729}}^1$

素因数の和:104789

約数の個数: 96

約数和(自身を含む): 5391500400

約数和(自身を除く): 3770295480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 43, 45, 60, 72, 86, 90, 120, 129, 172, 180, 215, 258, 344, 360, 387, 430, 516, 645, 774, 860, 1032, 1290, 1548, 1720, 1935, 2580, 3096, 3870, 5160, 7740, 15480, 104729, 209458, 314187, 418916, 523645, 628374, 837832, 942561, 1047290, 1256748, 1570935, 1885122, 2094580, 2513496, 3141870, 3770244, 4189160, 4503347, 4712805, 6283740, 7540488, 9006694, 9425610, 12567480, 13510041, 18013388, 18851220, 22516735, 27020082, 36026776, 37702440, 40530123, 45033470, 54040164, 67550205, 81060246, 90066940, 108080328, 135100410, 162120492, 180133880, 202650615, 270200820, 324240984, 405301230, 540401640, 810602460, 1621204920]

約数ペア:

[(1, 1621204920), (2, 810602460), (3, 540401640), (4, 405301230), (5, 324240984), (6, 270200820), (8, 202650615), (9, 180133880), (10, 162120492), (12, 135100410), (15, 108080328), (18, 90066940), (20, 81060246), (24, 67550205), (30, 54040164), (36, 45033470), (40, 40530123), (43, 37702440), (45, 36026776), (60, 27020082), (72, 22516735), (86, 18851220), (90, 18013388), (120, 13510041), (129, 12567480), (172, 9425610), (180, 9006694), (215, 7540488), (258, 6283740), (344, 4712805), (360, 4503347), (387, 4189160), (430, 3770244), (516, 3141870), (645, 2513496), (774, 2094580), (860, 1885122), (1032, 1570935), (1290, 1256748), (1548, 1047290), (1720, 942561), (1935, 837832), (2580, 628374), (3096, 523645), (3870, 418916), (5160, 314187), (7740, 209458), (15480, 104729)]