20179407880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{6011}}^1$

素因数の和:6175

約数の個数: 128

約数和(自身を含む): 49086777600

約数和(自身を除く): 28907369720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 41, 46, 82, 89, 92, 115, 164, 178, 184, 205, 230, 328, 356, 410, 445, 460, 712, 820, 890, 920, 943, 1640, 1780, 1886, 2047, 3560, 3649, 3772, 4094, 4715, 6011, 7298, 7544, 8188, 9430, 10235, 12022, 14596, 16376, 18245, 18860, 20470, 24044, 29192, 30055, 36490, 37720, 40940, 48088, 60110, 72980, 81880, 83927, 120220, 138253, 145960, 167854, 240440, 246451, 276506, 335708, 419635, 492902, 534979, 553012, 671416, 691265, 839270, 985804, 1069958, 1106024, 1232255, 1382530, 1678540, 1971608, 2139916, 2464510, 2674895, 2765060, 3357080, 4279832, 4929020, 5349790, 5530120, 5668373, 9858040, 10699580, 11336746, 12304517, 21399160, 21934139, 22673492, 24609034, 28341865, 43868278, 45346984, 49218068, 56683730, 61522585, 87736556, 98436136, 109670695, 113367460, 123045170, 175473112, 219341390, 226734920, 246090340, 438682780, 492180680, 504485197, 877365560, 1008970394, 2017940788, 2522425985, 4035881576, 5044851970, 10089703940, 20179407880]

約数ペア:

[(1, 20179407880), (2, 10089703940), (4, 5044851970), (5, 4035881576), (8, 2522425985), (10, 2017940788), (20, 1008970394), (23, 877365560), (40, 504485197), (41, 492180680), (46, 438682780), (82, 246090340), (89, 226734920), (92, 219341390), (115, 175473112), (164, 123045170), (178, 113367460), (184, 109670695), (205, 98436136), (230, 87736556), (328, 61522585), (356, 56683730), (410, 49218068), (445, 45346984), (460, 43868278), (712, 28341865), (820, 24609034), (890, 22673492), (920, 21934139), (943, 21399160), (1640, 12304517), (1780, 11336746), (1886, 10699580), (2047, 9858040), (3560, 5668373), (3649, 5530120), (3772, 5349790), (4094, 4929020), (4715, 4279832), (6011, 3357080), (7298, 2765060), (7544, 2674895), (8188, 2464510), (9430, 2139916), (10235, 1971608), (12022, 1678540), (14596, 1382530), (16376, 1232255), (18245, 1106024), (18860, 1069958), (20470, 985804), (24044, 839270), (29192, 691265), (30055, 671416), (36490, 553012), (37720, 534979), (40940, 492902), (48088, 419635), (60110, 335708), (72980, 276506), (81880, 246451), (83927, 240440), (120220, 167854), (138253, 145960)]