155575000

素因数分解:

$2^3\times 5^5\times 7^2\times {\mathrm{127}}^1$

素因数の和:172

約数の個数: 144

約数和(自身を含む): 427472640

約数和(自身を除く): 271897640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 125, 127, 140, 175, 196, 200, 245, 250, 254, 280, 350, 392, 490, 500, 508, 625, 635, 700, 875, 889, 980, 1000, 1016, 1225, 1250, 1270, 1400, 1750, 1778, 1960, 2450, 2500, 2540, 3125, 3175, 3500, 3556, 4375, 4445, 4900, 5000, 5080, 6125, 6223, 6250, 6350, 7000, 7112, 8750, 8890, 9800, 12250, 12446, 12500, 12700, 15875, 17500, 17780, 21875, 22225, 24500, 24892, 25000, 25400, 30625, 31115, 31750, 35000, 35560, 43750, 44450, 49000, 49784, 61250, 62230, 63500, 79375, 87500, 88900, 111125, 122500, 124460, 127000, 153125, 155575, 158750, 175000, 177800, 222250, 245000, 248920, 306250, 311150, 317500, 396875, 444500, 555625, 612500, 622300, 635000, 777875, 793750, 889000, 1111250, 1225000, 1244600, 1555750, 1587500, 2222500, 2778125, 3111500, 3175000, 3889375, 4445000, 5556250, 6223000, 7778750, 11112500, 15557500, 19446875, 22225000, 31115000, 38893750, 77787500, 155575000]

約数ペア:

[(1, 155575000), (2, 77787500), (4, 38893750), (5, 31115000), (7, 22225000), (8, 19446875), (10, 15557500), (14, 11112500), (20, 7778750), (25, 6223000), (28, 5556250), (35, 4445000), (40, 3889375), (49, 3175000), (50, 3111500), (56, 2778125), (70, 2222500), (98, 1587500), (100, 1555750), (125, 1244600), (127, 1225000), (140, 1111250), (175, 889000), (196, 793750), (200, 777875), (245, 635000), (250, 622300), (254, 612500), (280, 555625), (350, 444500), (392, 396875), (490, 317500), (500, 311150), (508, 306250), (625, 248920), (635, 245000), (700, 222250), (875, 177800), (889, 175000), (980, 158750), (1000, 155575), (1016, 153125), (1225, 127000), (1250, 124460), (1270, 122500), (1400, 111125), (1750, 88900), (1778, 87500), (1960, 79375), (2450, 63500), (2500, 62230), (2540, 61250), (3125, 49784), (3175, 49000), (3500, 44450), (3556, 43750), (4375, 35560), (4445, 35000), (4900, 31750), (5000, 31115), (5080, 30625), (6125, 25400), (6223, 25000), (6250, 24892), (6350, 24500), (7000, 22225), (7112, 21875), (8750, 17780), (8890, 17500), (9800, 15875), (12250, 12700), (12446, 12500)]