251168120

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{128147}}^1$

素因数の和:128172

約数の個数: 48

約数和(自身を含む): 657399240

約数和(自身を除く): 406231120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 128147, 256294, 512588, 640735, 897029, 1025176, 1281470, 1794058, 2562940, 3588116, 4485145, 5125880, 6279203, 7176232, 8970290, 12558406, 17940580, 25116812, 31396015, 35881160, 50233624, 62792030, 125584060, 251168120]

約数ペア:

[(1, 251168120), (2, 125584060), (4, 62792030), (5, 50233624), (7, 35881160), (8, 31396015), (10, 25116812), (14, 17940580), (20, 12558406), (28, 8970290), (35, 7176232), (40, 6279203), (49, 5125880), (56, 4485145), (70, 3588116), (98, 2562940), (140, 1794058), (196, 1281470), (245, 1025176), (280, 897029), (392, 640735), (490, 512588), (980, 256294), (1960, 128147)]