19418080

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1$

素因数の和:113

約数の個数: 144

約数和(自身を含む): 54295920

約数和(自身を除く): 34877840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 59, 68, 80, 85, 88, 110, 118, 121, 136, 160, 170, 176, 187, 220, 236, 242, 272, 295, 340, 352, 374, 440, 472, 484, 544, 590, 605, 649, 680, 748, 880, 935, 944, 968, 1003, 1180, 1210, 1298, 1360, 1496, 1760, 1870, 1888, 1936, 2006, 2057, 2360, 2420, 2596, 2720, 2992, 3245, 3740, 3872, 4012, 4114, 4720, 4840, 5015, 5192, 5984, 6490, 7139, 7480, 8024, 8228, 9440, 9680, 10030, 10285, 10384, 11033, 12980, 14278, 14960, 16048, 16456, 19360, 20060, 20570, 20768, 22066, 25960, 28556, 29920, 32096, 32912, 35695, 40120, 41140, 44132, 51920, 55165, 57112, 65824, 71390, 80240, 82280, 88264, 103840, 110330, 114224, 121363, 142780, 160480, 164560, 176528, 220660, 228448, 242726, 285560, 329120, 353056, 441320, 485452, 571120, 606815, 882640, 970904, 1142240, 1213630, 1765280, 1941808, 2427260, 3883616, 4854520, 9709040, 19418080]

約数ペア:

[(1, 19418080), (2, 9709040), (4, 4854520), (5, 3883616), (8, 2427260), (10, 1941808), (11, 1765280), (16, 1213630), (17, 1142240), (20, 970904), (22, 882640), (32, 606815), (34, 571120), (40, 485452), (44, 441320), (55, 353056), (59, 329120), (68, 285560), (80, 242726), (85, 228448), (88, 220660), (110, 176528), (118, 164560), (121, 160480), (136, 142780), (160, 121363), (170, 114224), (176, 110330), (187, 103840), (220, 88264), (236, 82280), (242, 80240), (272, 71390), (295, 65824), (340, 57112), (352, 55165), (374, 51920), (440, 44132), (472, 41140), (484, 40120), (544, 35695), (590, 32912), (605, 32096), (649, 29920), (680, 28556), (748, 25960), (880, 22066), (935, 20768), (944, 20570), (968, 20060), (1003, 19360), (1180, 16456), (1210, 16048), (1298, 14960), (1360, 14278), (1496, 12980), (1760, 11033), (1870, 10384), (1888, 10285), (1936, 10030), (2006, 9680), (2057, 9440), (2360, 8228), (2420, 8024), (2596, 7480), (2720, 7139), (2992, 6490), (3245, 5984), (3740, 5192), (3872, 5015), (4012, 4840), (4114, 4720)]