19844480

素因数分解:

$2^7\times 5^1\times {\mathrm{101}}^1\times {\mathrm{307}}^1$

素因数の和:427

約数の個数: 64

約数和(自身を含む): 48066480

約数和(自身を除く): 28222000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 307, 320, 404, 505, 614, 640, 808, 1010, 1228, 1535, 1616, 2020, 2456, 3070, 3232, 4040, 4912, 6140, 6464, 8080, 9824, 12280, 12928, 16160, 19648, 24560, 31007, 32320, 39296, 49120, 62014, 64640, 98240, 124028, 155035, 196480, 248056, 310070, 496112, 620140, 992224, 1240280, 1984448, 2480560, 3968896, 4961120, 9922240, 19844480]

約数ペア:

[(1, 19844480), (2, 9922240), (4, 4961120), (5, 3968896), (8, 2480560), (10, 1984448), (16, 1240280), (20, 992224), (32, 620140), (40, 496112), (64, 310070), (80, 248056), (101, 196480), (128, 155035), (160, 124028), (202, 98240), (307, 64640), (320, 62014), (404, 49120), (505, 39296), (614, 32320), (640, 31007), (808, 24560), (1010, 19648), (1228, 16160), (1535, 12928), (1616, 12280), (2020, 9824), (2456, 8080), (3070, 6464), (3232, 6140), (4040, 4912)]