199786240

素因数分解:

$2^8\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1229}}^1$

素因数の和:1377

約数の個数: 72

約数和(自身を含む): 482711040

約数和(自身を除く): 282924800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 508, 635, 640, 1016, 1229, 1270, 1280, 2032, 2458, 2540, 4064, 4916, 5080, 6145, 8128, 9832, 10160, 12290, 16256, 19664, 20320, 24580, 32512, 39328, 40640, 49160, 78656, 81280, 98320, 156083, 157312, 162560, 196640, 312166, 314624, 393280, 624332, 780415, 786560, 1248664, 1560830, 1573120, 2497328, 3121660, 4994656, 6243320, 9989312, 12486640, 19978624, 24973280, 39957248, 49946560, 99893120, 199786240]

約数ペア:

[(1, 199786240), (2, 99893120), (4, 49946560), (5, 39957248), (8, 24973280), (10, 19978624), (16, 12486640), (20, 9989312), (32, 6243320), (40, 4994656), (64, 3121660), (80, 2497328), (127, 1573120), (128, 1560830), (160, 1248664), (254, 786560), (256, 780415), (320, 624332), (508, 393280), (635, 314624), (640, 312166), (1016, 196640), (1229, 162560), (1270, 157312), (1280, 156083), (2032, 98320), (2458, 81280), (2540, 78656), (4064, 49160), (4916, 40640), (5080, 39328), (6145, 32512), (8128, 24580), (9832, 20320), (10160, 19664), (12290, 16256)]