1300720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:313

約数の個数: 40

約数和(自身を含む): 3080160

約数和(自身を除く): 1779440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 229, 284, 355, 458, 568, 710, 916, 1136, 1145, 1420, 1832, 2290, 2840, 3664, 4580, 5680, 9160, 16259, 18320, 32518, 65036, 81295, 130072, 162590, 260144, 325180, 650360, 1300720]

約数ペア:

[(1, 1300720), (2, 650360), (4, 325180), (5, 260144), (8, 162590), (10, 130072), (16, 81295), (20, 65036), (40, 32518), (71, 18320), (80, 16259), (142, 9160), (229, 5680), (284, 4580), (355, 3664), (458, 2840), (568, 2290), (710, 1832), (916, 1420), (1136, 1145)]