390709760

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{21803}}^1$

素因数の和:21833

約数の個数: 80

約数和(自身を含む): 1070663616

約数和(自身を除く): 679953856

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, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1792, 2240, 2560, 3584, 4480, 8960, 17920, 21803, 43606, 87212, 109015, 152621, 174424, 218030, 305242, 348848, 436060, 610484, 697696, 763105, 872120, 1220968, 1395392, 1526210, 1744240, 2441936, 2790784, 3052420, 3488480, 4883872, 5581568, 6104840, 6976960, 9767744, 11163136, 12209680, 13953920, 19535488, 24419360, 27907840, 39070976, 48838720, 55815680, 78141952, 97677440, 195354880, 390709760]

約数ペア:

[(1, 390709760), (2, 195354880), (4, 97677440), (5, 78141952), (7, 55815680), (8, 48838720), (10, 39070976), (14, 27907840), (16, 24419360), (20, 19535488), (28, 13953920), (32, 12209680), (35, 11163136), (40, 9767744), (56, 6976960), (64, 6104840), (70, 5581568), (80, 4883872), (112, 3488480), (128, 3052420), (140, 2790784), (160, 2441936), (224, 1744240), (256, 1526210), (280, 1395392), (320, 1220968), (448, 872120), (512, 763105), (560, 697696), (640, 610484), (896, 436060), (1120, 348848), (1280, 305242), (1792, 218030), (2240, 174424), (2560, 152621), (3584, 109015), (4480, 87212), (8960, 43606), (17920, 21803)]