78698000

素因数分解:

$2^4\times 5^3\times {\mathrm{19}}^2\times {\mathrm{109}}^1$

素因数の和:170

約数の個数: 120

約数和(自身を含む): 202676760

約数和(自身を除く): 123978760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 109, 125, 152, 190, 200, 218, 250, 304, 361, 380, 400, 436, 475, 500, 545, 722, 760, 872, 950, 1000, 1090, 1444, 1520, 1744, 1805, 1900, 2000, 2071, 2180, 2375, 2725, 2888, 3610, 3800, 4142, 4360, 4750, 5450, 5776, 7220, 7600, 8284, 8720, 9025, 9500, 10355, 10900, 13625, 14440, 16568, 18050, 19000, 20710, 21800, 27250, 28880, 33136, 36100, 38000, 39349, 41420, 43600, 45125, 51775, 54500, 72200, 78698, 82840, 90250, 103550, 109000, 144400, 157396, 165680, 180500, 196745, 207100, 218000, 258875, 314792, 361000, 393490, 414200, 517750, 629584, 722000, 786980, 828400, 983725, 1035500, 1573960, 1967450, 2071000, 3147920, 3934900, 4142000, 4918625, 7869800, 9837250, 15739600, 19674500, 39349000, 78698000]

約数ペア:

[(1, 78698000), (2, 39349000), (4, 19674500), (5, 15739600), (8, 9837250), (10, 7869800), (16, 4918625), (19, 4142000), (20, 3934900), (25, 3147920), (38, 2071000), (40, 1967450), (50, 1573960), (76, 1035500), (80, 983725), (95, 828400), (100, 786980), (109, 722000), (125, 629584), (152, 517750), (190, 414200), (200, 393490), (218, 361000), (250, 314792), (304, 258875), (361, 218000), (380, 207100), (400, 196745), (436, 180500), (475, 165680), (500, 157396), (545, 144400), (722, 109000), (760, 103550), (872, 90250), (950, 82840), (1000, 78698), (1090, 72200), (1444, 54500), (1520, 51775), (1744, 45125), (1805, 43600), (1900, 41420), (2000, 39349), (2071, 38000), (2180, 36100), (2375, 33136), (2725, 28880), (2888, 27250), (3610, 21800), (3800, 20710), (4142, 19000), (4360, 18050), (4750, 16568), (5450, 14440), (5776, 13625), (7220, 10900), (7600, 10355), (8284, 9500), (8720, 9025)]