18205124440

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1\times {\mathrm{229}}^1$

素因数の和:629

約数の個数: 128

約数和(自身を含む): 42163416000

約数和(自身を除く): 23958291560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 137, 163, 178, 229, 274, 326, 356, 445, 458, 548, 652, 685, 712, 815, 890, 916, 1096, 1145, 1304, 1370, 1630, 1780, 1832, 2290, 2740, 3260, 3560, 4580, 5480, 6520, 9160, 12193, 14507, 20381, 22331, 24386, 29014, 31373, 37327, 40762, 44662, 48772, 58028, 60965, 62746, 72535, 74654, 81524, 89324, 97544, 101905, 111655, 116056, 121930, 125492, 145070, 149308, 156865, 163048, 178648, 186635, 203810, 223310, 243860, 250984, 290140, 298616, 313730, 373270, 407620, 446620, 487720, 580280, 627460, 746540, 815240, 893240, 1254920, 1493080, 1987459, 2792197, 3322103, 3974918, 5113799, 5584394, 6644206, 7949836, 9937295, 10227598, 11168788, 13288412, 13960985, 15899672, 16610515, 19874590, 20455196, 22337576, 25568995, 26576824, 27921970, 33221030, 39749180, 40910392, 51137990, 55843940, 66442060, 79498360, 102275980, 111687880, 132884120, 204551960, 455128111, 910256222, 1820512444, 2275640555, 3641024888, 4551281110, 9102562220, 18205124440]

約数ペア:

[(1, 18205124440), (2, 9102562220), (4, 4551281110), (5, 3641024888), (8, 2275640555), (10, 1820512444), (20, 910256222), (40, 455128111), (89, 204551960), (137, 132884120), (163, 111687880), (178, 102275980), (229, 79498360), (274, 66442060), (326, 55843940), (356, 51137990), (445, 40910392), (458, 39749180), (548, 33221030), (652, 27921970), (685, 26576824), (712, 25568995), (815, 22337576), (890, 20455196), (916, 19874590), (1096, 16610515), (1145, 15899672), (1304, 13960985), (1370, 13288412), (1630, 11168788), (1780, 10227598), (1832, 9937295), (2290, 7949836), (2740, 6644206), (3260, 5584394), (3560, 5113799), (4580, 3974918), (5480, 3322103), (6520, 2792197), (9160, 1987459), (12193, 1493080), (14507, 1254920), (20381, 893240), (22331, 815240), (24386, 746540), (29014, 627460), (31373, 580280), (37327, 487720), (40762, 446620), (44662, 407620), (48772, 373270), (58028, 313730), (60965, 298616), (62746, 290140), (72535, 250984), (74654, 243860), (81524, 223310), (89324, 203810), (97544, 186635), (101905, 178648), (111655, 163048), (116056, 156865), (121930, 149308), (125492, 145070)]