18941440

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{151}}^1$

素因数の和:188

約数の個数: 120

約数和(自身を含む): 53179632

約数和(自身を除く): 34238192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 151, 160, 196, 224, 245, 256, 280, 302, 320, 392, 448, 490, 512, 560, 604, 640, 755, 784, 896, 980, 1057, 1120, 1208, 1280, 1510, 1568, 1792, 1960, 2114, 2240, 2416, 2560, 3020, 3136, 3584, 3920, 4228, 4480, 4832, 5285, 6040, 6272, 7399, 7840, 8456, 8960, 9664, 10570, 12080, 12544, 14798, 15680, 16912, 17920, 19328, 21140, 24160, 25088, 29596, 31360, 33824, 36995, 38656, 42280, 48320, 59192, 62720, 67648, 73990, 77312, 84560, 96640, 118384, 125440, 135296, 147980, 169120, 193280, 236768, 270592, 295960, 338240, 386560, 473536, 541184, 591920, 676480, 947072, 1183840, 1352960, 1894144, 2367680, 2705920, 3788288, 4735360, 9470720, 18941440]

約数ペア:

[(1, 18941440), (2, 9470720), (4, 4735360), (5, 3788288), (7, 2705920), (8, 2367680), (10, 1894144), (14, 1352960), (16, 1183840), (20, 947072), (28, 676480), (32, 591920), (35, 541184), (40, 473536), (49, 386560), (56, 338240), (64, 295960), (70, 270592), (80, 236768), (98, 193280), (112, 169120), (128, 147980), (140, 135296), (151, 125440), (160, 118384), (196, 96640), (224, 84560), (245, 77312), (256, 73990), (280, 67648), (302, 62720), (320, 59192), (392, 48320), (448, 42280), (490, 38656), (512, 36995), (560, 33824), (604, 31360), (640, 29596), (755, 25088), (784, 24160), (896, 21140), (980, 19328), (1057, 17920), (1120, 16912), (1208, 15680), (1280, 14798), (1510, 12544), (1568, 12080), (1792, 10570), (1960, 9664), (2114, 8960), (2240, 8456), (2416, 7840), (2560, 7399), (3020, 6272), (3136, 6040), (3584, 5285), (3920, 4832), (4228, 4480)]