78242560

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5557}}^1$

素因数の和:5589

約数の個数: 72

約数和(自身を含む): 204489936

約数和(自身を除く): 126247376

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 5557, 7040, 11114, 14080, 22228, 27785, 44456, 55570, 61127, 88912, 111140, 122254, 177824, 222280, 244508, 305635, 355648, 444560, 489016, 611270, 711296, 889120, 978032, 1222540, 1422592, 1778240, 1956064, 2445080, 3556480, 3912128, 4890160, 7112960, 7824256, 9780320, 15648512, 19560640, 39121280, 78242560]

約数ペア:

[(1, 78242560), (2, 39121280), (4, 19560640), (5, 15648512), (8, 9780320), (10, 7824256), (11, 7112960), (16, 4890160), (20, 3912128), (22, 3556480), (32, 2445080), (40, 1956064), (44, 1778240), (55, 1422592), (64, 1222540), (80, 978032), (88, 889120), (110, 711296), (128, 611270), (160, 489016), (176, 444560), (220, 355648), (256, 305635), (320, 244508), (352, 222280), (440, 177824), (640, 122254), (704, 111140), (880, 88912), (1280, 61127), (1408, 55570), (1760, 44456), (2816, 27785), (3520, 22228), (5557, 14080), (7040, 11114)]