199741568

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1$

素因数の和:374

約数の個数: 128

約数和(自身を含む): 475009920

約数和(自身を除く): 275268352

約数列:

[1, 2, 4, 8, 13, 16, 17, 23, 26, 32, 34, 46, 52, 64, 68, 92, 104, 128, 136, 184, 208, 221, 272, 299, 307, 368, 391, 416, 442, 544, 598, 614, 736, 782, 832, 884, 1088, 1196, 1228, 1472, 1564, 1664, 1768, 2176, 2392, 2456, 2944, 3128, 3536, 3991, 4784, 4912, 5083, 5219, 6256, 7061, 7072, 7982, 9568, 9824, 10166, 10438, 12512, 14122, 14144, 15964, 19136, 19648, 20332, 20876, 25024, 28244, 28288, 31928, 38272, 39296, 40664, 41752, 50048, 56488, 63856, 67847, 81328, 83504, 91793, 112976, 120037, 127712, 135694, 162656, 167008, 183586, 225952, 240074, 255424, 271388, 325312, 334016, 367172, 451904, 480148, 510848, 542776, 650624, 668032, 734344, 903808, 960296, 1085552, 1468688, 1560481, 1920592, 2171104, 2937376, 3120962, 3841184, 4342208, 5874752, 6241924, 7682368, 8684416, 11749504, 12483848, 15364736, 24967696, 49935392, 99870784, 199741568]

約数ペア:

[(1, 199741568), (2, 99870784), (4, 49935392), (8, 24967696), (13, 15364736), (16, 12483848), (17, 11749504), (23, 8684416), (26, 7682368), (32, 6241924), (34, 5874752), (46, 4342208), (52, 3841184), (64, 3120962), (68, 2937376), (92, 2171104), (104, 1920592), (128, 1560481), (136, 1468688), (184, 1085552), (208, 960296), (221, 903808), (272, 734344), (299, 668032), (307, 650624), (368, 542776), (391, 510848), (416, 480148), (442, 451904), (544, 367172), (598, 334016), (614, 325312), (736, 271388), (782, 255424), (832, 240074), (884, 225952), (1088, 183586), (1196, 167008), (1228, 162656), (1472, 135694), (1564, 127712), (1664, 120037), (1768, 112976), (2176, 91793), (2392, 83504), (2456, 81328), (2944, 67847), (3128, 63856), (3536, 56488), (3991, 50048), (4784, 41752), (4912, 40664), (5083, 39296), (5219, 38272), (6256, 31928), (7061, 28288), (7072, 28244), (7982, 25024), (9568, 20876), (9824, 20332), (10166, 19648), (10438, 19136), (12512, 15964), (14122, 14144)]