20408049376252

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{2129}}^1\times {\mathrm{141241}}^1$

素因数の和:143459

約数の個数: 72

約数和(自身を含む): 38513032407360

約数和(自身を除く): 18104983031108

約数列:

[1, 2, 4, 19, 38, 47, 76, 94, 188, 361, 722, 893, 1444, 1786, 2129, 3572, 4258, 8516, 16967, 33934, 40451, 67868, 80902, 100063, 141241, 161804, 200126, 282482, 400252, 564964, 768569, 1537138, 1901197, 2683579, 3074276, 3802394, 5367158, 6638327, 7604788, 10734316, 13276654, 26553308, 36122743, 50988001, 72245486, 101976002, 126128213, 144490972, 203952004, 252256426, 300702089, 504512852, 601404178, 1202808356, 2396436047, 4792872094, 5713339691, 9585744188, 11426679382, 14132998183, 22853358764, 28265996366, 56531992732, 108553454129, 217106908258, 268526965477, 434213816516, 537053930954, 1074107861908, 5102012344063, 10204024688126, 20408049376252]

約数ペア:

[(1, 20408049376252), (2, 10204024688126), (4, 5102012344063), (19, 1074107861908), (38, 537053930954), (47, 434213816516), (76, 268526965477), (94, 217106908258), (188, 108553454129), (361, 56531992732), (722, 28265996366), (893, 22853358764), (1444, 14132998183), (1786, 11426679382), (2129, 9585744188), (3572, 5713339691), (4258, 4792872094), (8516, 2396436047), (16967, 1202808356), (33934, 601404178), (40451, 504512852), (67868, 300702089), (80902, 252256426), (100063, 203952004), (141241, 144490972), (161804, 126128213), (200126, 101976002), (282482, 72245486), (400252, 50988001), (564964, 36122743), (768569, 26553308), (1537138, 13276654), (1901197, 10734316), (2683579, 7604788), (3074276, 6638327), (3802394, 5367158)]