20387500840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{166619}}^1$

素因数の和:166679

約数の個数: 128

約数和(自身を含む): 57583872000

約数和(自身を除く): 37196371160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 23, 28, 35, 38, 40, 46, 56, 70, 76, 92, 95, 115, 133, 140, 152, 161, 184, 190, 230, 266, 280, 322, 380, 437, 460, 532, 644, 665, 760, 805, 874, 920, 1064, 1288, 1330, 1610, 1748, 2185, 2660, 3059, 3220, 3496, 4370, 5320, 6118, 6440, 8740, 12236, 15295, 17480, 24472, 30590, 61180, 122360, 166619, 333238, 666476, 833095, 1166333, 1332952, 1666190, 2332666, 3165761, 3332380, 3832237, 4665332, 5831665, 6331522, 6664760, 7664474, 9330664, 11663330, 12663044, 15328948, 15828805, 19161185, 22160327, 23326660, 25326088, 26825659, 30657896, 31657610, 38322370, 44320654, 46653320, 53651318, 63315220, 72812503, 76644740, 88641308, 107302636, 110801635, 126630440, 134128295, 145625006, 153289480, 177282616, 214605272, 221603270, 268256590, 291250012, 364062515, 443206540, 509687521, 536513180, 582500024, 728125030, 886413080, 1019375042, 1073026360, 1456250060, 2038750084, 2548437605, 2912500120, 4077500168, 5096875210, 10193750420, 20387500840]

約数ペア:

[(1, 20387500840), (2, 10193750420), (4, 5096875210), (5, 4077500168), (7, 2912500120), (8, 2548437605), (10, 2038750084), (14, 1456250060), (19, 1073026360), (20, 1019375042), (23, 886413080), (28, 728125030), (35, 582500024), (38, 536513180), (40, 509687521), (46, 443206540), (56, 364062515), (70, 291250012), (76, 268256590), (92, 221603270), (95, 214605272), (115, 177282616), (133, 153289480), (140, 145625006), (152, 134128295), (161, 126630440), (184, 110801635), (190, 107302636), (230, 88641308), (266, 76644740), (280, 72812503), (322, 63315220), (380, 53651318), (437, 46653320), (460, 44320654), (532, 38322370), (644, 31657610), (665, 30657896), (760, 26825659), (805, 25326088), (874, 23326660), (920, 22160327), (1064, 19161185), (1288, 15828805), (1330, 15328948), (1610, 12663044), (1748, 11663330), (2185, 9330664), (2660, 7664474), (3059, 6664760), (3220, 6331522), (3496, 5831665), (4370, 4665332), (5320, 3832237), (6118, 3332380), (6440, 3165761), (8740, 2332666), (12236, 1666190), (15295, 1332952), (17480, 1166333), (24472, 833095), (30590, 666476), (61180, 333238), (122360, 166619)]