17963128720

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{28099}}^1$

素因数の和:28304

約数の個数: 80

約数和(自身を含む): 42774494400

約数和(自身を除く): 24811365680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 131, 244, 262, 305, 488, 524, 610, 655, 976, 1048, 1220, 1310, 2096, 2440, 2620, 4880, 5240, 7991, 10480, 15982, 28099, 31964, 39955, 56198, 63928, 79910, 112396, 127856, 140495, 159820, 224792, 280990, 319640, 449584, 561980, 639280, 1123960, 1714039, 2247920, 3428078, 3680969, 6856156, 7361938, 8570195, 13712312, 14723876, 17140390, 18404845, 27424624, 29447752, 34280780, 36809690, 58895504, 68561560, 73619380, 137123120, 147238760, 224539109, 294477520, 449078218, 898156436, 1122695545, 1796312872, 2245391090, 3592625744, 4490782180, 8981564360, 17963128720]

約数ペア:

[(1, 17963128720), (2, 8981564360), (4, 4490782180), (5, 3592625744), (8, 2245391090), (10, 1796312872), (16, 1122695545), (20, 898156436), (40, 449078218), (61, 294477520), (80, 224539109), (122, 147238760), (131, 137123120), (244, 73619380), (262, 68561560), (305, 58895504), (488, 36809690), (524, 34280780), (610, 29447752), (655, 27424624), (976, 18404845), (1048, 17140390), (1220, 14723876), (1310, 13712312), (2096, 8570195), (2440, 7361938), (2620, 6856156), (4880, 3680969), (5240, 3428078), (7991, 2247920), (10480, 1714039), (15982, 1123960), (28099, 639280), (31964, 561980), (39955, 449584), (56198, 319640), (63928, 280990), (79910, 224792), (112396, 159820), (127856, 140495)]