19967360

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4457}}^1$

素因数の和:4483

約数の個数: 64

約数和(自身を含む): 54565920

約数和(自身を除く): 34598560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4457, 4480, 8914, 17828, 22285, 31199, 35656, 44570, 62398, 71312, 89140, 124796, 142624, 155995, 178280, 249592, 285248, 311990, 356560, 499184, 570496, 623980, 713120, 998368, 1247960, 1426240, 1996736, 2495920, 2852480, 3993472, 4991840, 9983680, 19967360]

約数ペア:

[(1, 19967360), (2, 9983680), (4, 4991840), (5, 3993472), (7, 2852480), (8, 2495920), (10, 1996736), (14, 1426240), (16, 1247960), (20, 998368), (28, 713120), (32, 623980), (35, 570496), (40, 499184), (56, 356560), (64, 311990), (70, 285248), (80, 249592), (112, 178280), (128, 155995), (140, 142624), (160, 124796), (224, 89140), (280, 71312), (320, 62398), (448, 44570), (560, 35656), (640, 31199), (896, 22285), (1120, 17828), (2240, 8914), (4457, 4480)]