251195280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{149521}}^1$

素因数の和:149544

約数の個数: 80

約数和(自身を含む): 889954944

約数和(自身を除く): 638759664

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 149521, 299042, 448563, 598084, 747605, 897126, 1046647, 1196168, 1495210, 1794252, 2093294, 2242815, 2392336, 2990420, 3139941, 3588504, 4186588, 4485630, 5233235, 5980840, 6279882, 7177008, 8373176, 8971260, 10466470, 11961680, 12559764, 15699705, 16746352, 17942520, 20932940, 25119528, 31399410, 35885040, 41865880, 50239056, 62798820, 83731760, 125597640, 251195280]

約数ペア:

[(1, 251195280), (2, 125597640), (3, 83731760), (4, 62798820), (5, 50239056), (6, 41865880), (7, 35885040), (8, 31399410), (10, 25119528), (12, 20932940), (14, 17942520), (15, 16746352), (16, 15699705), (20, 12559764), (21, 11961680), (24, 10466470), (28, 8971260), (30, 8373176), (35, 7177008), (40, 6279882), (42, 5980840), (48, 5233235), (56, 4485630), (60, 4186588), (70, 3588504), (80, 3139941), (84, 2990420), (105, 2392336), (112, 2242815), (120, 2093294), (140, 1794252), (168, 1495210), (210, 1196168), (240, 1046647), (280, 897126), (336, 747605), (420, 598084), (560, 448563), (840, 299042), (1680, 149521)]