78818080

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2357}}^1$

素因数の和:2402

約数の個数: 96

約数和(自身を含む): 213917760

約数和(自身を除く): 135099680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 160, 176, 190, 209, 220, 304, 352, 380, 418, 440, 608, 760, 836, 880, 1045, 1520, 1672, 1760, 2090, 2357, 3040, 3344, 4180, 4714, 6688, 8360, 9428, 11785, 16720, 18856, 23570, 25927, 33440, 37712, 44783, 47140, 51854, 75424, 89566, 94280, 103708, 129635, 179132, 188560, 207416, 223915, 259270, 358264, 377120, 414832, 447830, 492613, 518540, 716528, 829664, 895660, 985226, 1037080, 1433056, 1791320, 1970452, 2074160, 2463065, 3582640, 3940904, 4148320, 4926130, 7165280, 7881808, 9852260, 15763616, 19704520, 39409040, 78818080]

約数ペア:

[(1, 78818080), (2, 39409040), (4, 19704520), (5, 15763616), (8, 9852260), (10, 7881808), (11, 7165280), (16, 4926130), (19, 4148320), (20, 3940904), (22, 3582640), (32, 2463065), (38, 2074160), (40, 1970452), (44, 1791320), (55, 1433056), (76, 1037080), (80, 985226), (88, 895660), (95, 829664), (110, 716528), (152, 518540), (160, 492613), (176, 447830), (190, 414832), (209, 377120), (220, 358264), (304, 259270), (352, 223915), (380, 207416), (418, 188560), (440, 179132), (608, 129635), (760, 103708), (836, 94280), (880, 89566), (1045, 75424), (1520, 51854), (1672, 47140), (1760, 44783), (2090, 37712), (2357, 33440), (3040, 25927), (3344, 23570), (4180, 18856), (4714, 16720), (6688, 11785), (8360, 9428)]