20176024880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{290219}}^1$

素因数の和:290322

約数の個数: 80

約数和(自身を含む): 51821683200

約数和(自身を除く): 31645658320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 79, 80, 88, 110, 158, 176, 220, 316, 395, 440, 632, 790, 869, 880, 1264, 1580, 1738, 3160, 3476, 4345, 6320, 6952, 8690, 13904, 17380, 34760, 69520, 290219, 580438, 1160876, 1451095, 2321752, 2902190, 3192409, 4643504, 5804380, 6384818, 11608760, 12769636, 15962045, 22927301, 23217520, 25539272, 31924090, 45854602, 51078544, 63848180, 91709204, 114636505, 127696360, 183418408, 229273010, 252200311, 255392720, 366836816, 458546020, 504400622, 917092040, 1008801244, 1261001555, 1834184080, 2017602488, 2522003110, 4035204976, 5044006220, 10088012440, 20176024880]

約数ペア:

[(1, 20176024880), (2, 10088012440), (4, 5044006220), (5, 4035204976), (8, 2522003110), (10, 2017602488), (11, 1834184080), (16, 1261001555), (20, 1008801244), (22, 917092040), (40, 504400622), (44, 458546020), (55, 366836816), (79, 255392720), (80, 252200311), (88, 229273010), (110, 183418408), (158, 127696360), (176, 114636505), (220, 91709204), (316, 63848180), (395, 51078544), (440, 45854602), (632, 31924090), (790, 25539272), (869, 23217520), (880, 22927301), (1264, 15962045), (1580, 12769636), (1738, 11608760), (3160, 6384818), (3476, 5804380), (4345, 4643504), (6320, 3192409), (6952, 2902190), (8690, 2321752), (13904, 1451095), (17380, 1160876), (34760, 580438), (69520, 290219)]