2051840

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{229}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 5641440

約数和(自身を除く): 3589600

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, 229, 256, 280, 320, 448, 458, 560, 640, 896, 916, 1120, 1145, 1280, 1603, 1792, 1832, 2240, 2290, 3206, 3664, 4480, 4580, 6412, 7328, 8015, 8960, 9160, 12824, 14656, 16030, 18320, 25648, 29312, 32060, 36640, 51296, 58624, 64120, 73280, 102592, 128240, 146560, 205184, 256480, 293120, 410368, 512960, 1025920, 2051840]

約数ペア:

[(1, 2051840), (2, 1025920), (4, 512960), (5, 410368), (7, 293120), (8, 256480), (10, 205184), (14, 146560), (16, 128240), (20, 102592), (28, 73280), (32, 64120), (35, 58624), (40, 51296), (56, 36640), (64, 32060), (70, 29312), (80, 25648), (112, 18320), (128, 16030), (140, 14656), (160, 12824), (224, 9160), (229, 8960), (256, 8015), (280, 7328), (320, 6412), (448, 4580), (458, 4480), (560, 3664), (640, 3206), (896, 2290), (916, 2240), (1120, 1832), (1145, 1792), (1280, 1603)]