19777120

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{661}}^1$

素因数の和:704

約数の個数: 96

約数和(自身を含む): 54050976

約数和(自身を除く): 34273856

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 160, 170, 176, 187, 220, 272, 340, 352, 374, 440, 544, 661, 680, 748, 880, 935, 1322, 1360, 1496, 1760, 1870, 2644, 2720, 2992, 3305, 3740, 5288, 5984, 6610, 7271, 7480, 10576, 11237, 13220, 14542, 14960, 21152, 22474, 26440, 29084, 29920, 36355, 44948, 52880, 56185, 58168, 72710, 89896, 105760, 112370, 116336, 123607, 145420, 179792, 224740, 232672, 247214, 290840, 359584, 449480, 494428, 581680, 618035, 898960, 988856, 1163360, 1236070, 1797920, 1977712, 2472140, 3955424, 4944280, 9888560, 19777120]

約数ペア:

[(1, 19777120), (2, 9888560), (4, 4944280), (5, 3955424), (8, 2472140), (10, 1977712), (11, 1797920), (16, 1236070), (17, 1163360), (20, 988856), (22, 898960), (32, 618035), (34, 581680), (40, 494428), (44, 449480), (55, 359584), (68, 290840), (80, 247214), (85, 232672), (88, 224740), (110, 179792), (136, 145420), (160, 123607), (170, 116336), (176, 112370), (187, 105760), (220, 89896), (272, 72710), (340, 58168), (352, 56185), (374, 52880), (440, 44948), (544, 36355), (661, 29920), (680, 29084), (748, 26440), (880, 22474), (935, 21152), (1322, 14960), (1360, 14542), (1496, 13220), (1760, 11237), (1870, 10576), (2644, 7480), (2720, 7271), (2992, 6610), (3305, 5984), (3740, 5288)]