25468720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:398

約数の個数: 80

約数和(自身を含む): 63933408

約数和(自身を除く): 38464688

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 61, 68, 80, 85, 122, 136, 170, 244, 272, 305, 307, 340, 488, 610, 614, 680, 976, 1037, 1220, 1228, 1360, 1535, 2074, 2440, 2456, 3070, 4148, 4880, 4912, 5185, 5219, 6140, 8296, 10370, 10438, 12280, 16592, 18727, 20740, 20876, 24560, 26095, 37454, 41480, 41752, 52190, 74908, 82960, 83504, 93635, 104380, 149816, 187270, 208760, 299632, 318359, 374540, 417520, 636718, 749080, 1273436, 1498160, 1591795, 2546872, 3183590, 5093744, 6367180, 12734360, 25468720]

約数ペア:

[(1, 25468720), (2, 12734360), (4, 6367180), (5, 5093744), (8, 3183590), (10, 2546872), (16, 1591795), (17, 1498160), (20, 1273436), (34, 749080), (40, 636718), (61, 417520), (68, 374540), (80, 318359), (85, 299632), (122, 208760), (136, 187270), (170, 149816), (244, 104380), (272, 93635), (305, 83504), (307, 82960), (340, 74908), (488, 52190), (610, 41752), (614, 41480), (680, 37454), (976, 26095), (1037, 24560), (1220, 20876), (1228, 20740), (1360, 18727), (1535, 16592), (2074, 12280), (2440, 10438), (2456, 10370), (3070, 8296), (4148, 6140), (4880, 5219), (4912, 5185)]