20218240

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4513}}^1$

素因数の和:4539

約数の個数: 64

約数和(自身を含む): 55251360

約数和(自身を除く): 35033120

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, 4480, 4513, 9026, 18052, 22565, 31591, 36104, 45130, 63182, 72208, 90260, 126364, 144416, 157955, 180520, 252728, 288832, 315910, 361040, 505456, 577664, 631820, 722080, 1010912, 1263640, 1444160, 2021824, 2527280, 2888320, 4043648, 5054560, 10109120, 20218240]

約数ペア:

[(1, 20218240), (2, 10109120), (4, 5054560), (5, 4043648), (7, 2888320), (8, 2527280), (10, 2021824), (14, 1444160), (16, 1263640), (20, 1010912), (28, 722080), (32, 631820), (35, 577664), (40, 505456), (56, 361040), (64, 315910), (70, 288832), (80, 252728), (112, 180520), (128, 157955), (140, 144416), (160, 126364), (224, 90260), (280, 72208), (320, 63182), (448, 45130), (560, 36104), (640, 31591), (896, 22565), (1120, 18052), (2240, 9026), (4480, 4513)]