20177887730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{18839}}^1$

素因数の和:18984

約数の個数: 128

約数和(自身を含む): 49223946240

約数和(自身を除く): 29046058510

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 107, 110, 130, 143, 154, 182, 214, 286, 385, 455, 535, 715, 749, 770, 910, 1001, 1070, 1177, 1391, 1430, 1498, 2002, 2354, 2782, 3745, 5005, 5885, 6955, 7490, 8239, 9737, 10010, 11770, 13910, 15301, 16478, 18839, 19474, 30602, 37678, 41195, 48685, 76505, 82390, 94195, 97370, 107107, 131873, 153010, 188390, 207229, 214214, 244907, 263746, 414458, 489814, 535535, 659365, 1036145, 1071070, 1224535, 1318730, 1450603, 1714349, 2015773, 2072290, 2449070, 2693977, 2901206, 3428698, 4031546, 5387954, 7253015, 8571745, 10078865, 13469885, 14110411, 14506030, 17143490, 18857839, 20157730, 22173503, 26205049, 26939770, 28220822, 37715678, 44347006, 52410098, 70552055, 94289195, 110867515, 131025245, 141104110, 155214521, 183435343, 188578390, 221735030, 262050490, 288255539, 310429042, 366870686, 576511078, 776072605, 917176715, 1441277695, 1552145210, 1834353430, 2017788773, 2882555390, 4035577546, 10088943865, 20177887730]

約数ペア:

[(1, 20177887730), (2, 10088943865), (5, 4035577546), (7, 2882555390), (10, 2017788773), (11, 1834353430), (13, 1552145210), (14, 1441277695), (22, 917176715), (26, 776072605), (35, 576511078), (55, 366870686), (65, 310429042), (70, 288255539), (77, 262050490), (91, 221735030), (107, 188578390), (110, 183435343), (130, 155214521), (143, 141104110), (154, 131025245), (182, 110867515), (214, 94289195), (286, 70552055), (385, 52410098), (455, 44347006), (535, 37715678), (715, 28220822), (749, 26939770), (770, 26205049), (910, 22173503), (1001, 20157730), (1070, 18857839), (1177, 17143490), (1391, 14506030), (1430, 14110411), (1498, 13469885), (2002, 10078865), (2354, 8571745), (2782, 7253015), (3745, 5387954), (5005, 4031546), (5885, 3428698), (6955, 2901206), (7490, 2693977), (8239, 2449070), (9737, 2072290), (10010, 2015773), (11770, 1714349), (13910, 1450603), (15301, 1318730), (16478, 1224535), (18839, 1071070), (19474, 1036145), (30602, 659365), (37678, 535535), (41195, 489814), (48685, 414458), (76505, 263746), (82390, 244907), (94195, 214214), (97370, 207229), (107107, 188390), (131873, 153010)]