900640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{433}}^1$

素因数の和:461

約数の個数: 48

約数和(自身を含む): 2296728

約数和(自身を除く): 1396088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 433, 520, 866, 1040, 1732, 2080, 2165, 3464, 4330, 5629, 6928, 8660, 11258, 13856, 17320, 22516, 28145, 34640, 45032, 56290, 69280, 90064, 112580, 180128, 225160, 450320, 900640]

約数ペア:

[(1, 900640), (2, 450320), (4, 225160), (5, 180128), (8, 112580), (10, 90064), (13, 69280), (16, 56290), (20, 45032), (26, 34640), (32, 28145), (40, 22516), (52, 17320), (65, 13856), (80, 11258), (104, 8660), (130, 6928), (160, 5629), (208, 4330), (260, 3464), (416, 2165), (433, 2080), (520, 1732), (866, 1040)]