19997282816

素因数分解:

$2^9\times 7^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:594

約数の個数: 160

約数和(自身を含む): 46485774720

約数和(自身を除く): 26488491904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 137, 139, 224, 256, 274, 278, 293, 448, 512, 548, 556, 586, 896, 959, 973, 1096, 1112, 1172, 1792, 1918, 1946, 2051, 2192, 2224, 2344, 3584, 3836, 3892, 4102, 4384, 4448, 4688, 7672, 7784, 8204, 8768, 8896, 9376, 15344, 15568, 16408, 17536, 17792, 18752, 19043, 30688, 31136, 32816, 35072, 35584, 37504, 38086, 40141, 40727, 61376, 62272, 65632, 70144, 71168, 75008, 76172, 80282, 81454, 122752, 124544, 131264, 133301, 150016, 152344, 160564, 162908, 245504, 249088, 262528, 266602, 280987, 285089, 304688, 321128, 325816, 491008, 498176, 525056, 533204, 561974, 570178, 609376, 642256, 651632, 1050112, 1066408, 1123948, 1140356, 1218752, 1284512, 1303264, 2132816, 2247896, 2280712, 2437504, 2569024, 2606528, 4265632, 4495792, 4561424, 4875008, 5138048, 5213056, 5579599, 8531264, 8991584, 9122848, 9750016, 10276096, 10426112, 11159198, 17062528, 17983168, 18245696, 20552192, 20852224, 22318396, 34125056, 35966336, 36491392, 39057193, 44636792, 68250112, 71932672, 72982784, 78114386, 89273584, 143865344, 145965568, 156228772, 178547168, 312457544, 357094336, 624915088, 714188672, 1249830176, 1428377344, 2499660352, 2856754688, 4999320704, 9998641408, 19997282816]

約数ペア:

[(1, 19997282816), (2, 9998641408), (4, 4999320704), (7, 2856754688), (8, 2499660352), (14, 1428377344), (16, 1249830176), (28, 714188672), (32, 624915088), (56, 357094336), (64, 312457544), (112, 178547168), (128, 156228772), (137, 145965568), (139, 143865344), (224, 89273584), (256, 78114386), (274, 72982784), (278, 71932672), (293, 68250112), (448, 44636792), (512, 39057193), (548, 36491392), (556, 35966336), (586, 34125056), (896, 22318396), (959, 20852224), (973, 20552192), (1096, 18245696), (1112, 17983168), (1172, 17062528), (1792, 11159198), (1918, 10426112), (1946, 10276096), (2051, 9750016), (2192, 9122848), (2224, 8991584), (2344, 8531264), (3584, 5579599), (3836, 5213056), (3892, 5138048), (4102, 4875008), (4384, 4561424), (4448, 4495792), (4688, 4265632), (7672, 2606528), (7784, 2569024), (8204, 2437504), (8768, 2280712), (8896, 2247896), (9376, 2132816), (15344, 1303264), (15568, 1284512), (16408, 1218752), (17536, 1140356), (17792, 1123948), (18752, 1066408), (19043, 1050112), (30688, 651632), (31136, 642256), (32816, 609376), (35072, 570178), (35584, 561974), (37504, 533204), (38086, 525056), (40141, 498176), (40727, 491008), (61376, 325816), (62272, 321128), (65632, 304688), (70144, 285089), (71168, 280987), (75008, 266602), (76172, 262528), (80282, 249088), (81454, 245504), (122752, 162908), (124544, 160564), (131264, 152344), (133301, 150016)]