64739000

素因数分解:

$2^3\times 5^3\times {\mathrm{41}}^1\times {\mathrm{1579}}^1$

素因数の和:1641

約数の個数: 64

約数和(自身を含む): 155282400

約数和(自身を除く): 90543400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 125, 164, 200, 205, 250, 328, 410, 500, 820, 1000, 1025, 1579, 1640, 2050, 3158, 4100, 5125, 6316, 7895, 8200, 10250, 12632, 15790, 20500, 31580, 39475, 41000, 63160, 64739, 78950, 129478, 157900, 197375, 258956, 315800, 323695, 394750, 517912, 647390, 789500, 1294780, 1579000, 1618475, 2589560, 3236950, 6473900, 8092375, 12947800, 16184750, 32369500, 64739000]

約数ペア:

[(1, 64739000), (2, 32369500), (4, 16184750), (5, 12947800), (8, 8092375), (10, 6473900), (20, 3236950), (25, 2589560), (40, 1618475), (41, 1579000), (50, 1294780), (82, 789500), (100, 647390), (125, 517912), (164, 394750), (200, 323695), (205, 315800), (250, 258956), (328, 197375), (410, 157900), (500, 129478), (820, 78950), (1000, 64739), (1025, 63160), (1579, 41000), (1640, 39475), (2050, 31580), (3158, 20500), (4100, 15790), (5125, 12632), (6316, 10250), (7895, 8200)]