31328875

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:696

約数の個数: 32

約数和(自身を含む): 43265664

約数和(自身を除く): 11936789

約数列:

[1, 5, 17, 23, 25, 85, 115, 125, 391, 425, 575, 641, 1955, 2125, 2875, 3205, 9775, 10897, 14743, 16025, 48875, 54485, 73715, 80125, 250631, 272425, 368575, 1253155, 1362125, 1842875, 6265775, 31328875]

約数ペア:

[(1, 31328875), (5, 6265775), (17, 1842875), (23, 1362125), (25, 1253155), (85, 368575), (115, 272425), (125, 250631), (391, 80125), (425, 73715), (575, 54485), (641, 48875), (1955, 16025), (2125, 14743), (2875, 10897), (3205, 9775)]