1397825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:74

約数の個数: 48

約数和(自身を含む): 2249856

約数和(自身を除く): 852031

約数列:

[1, 5, 11, 13, 17, 23, 25, 55, 65, 85, 115, 143, 187, 221, 253, 275, 299, 325, 391, 425, 575, 715, 935, 1105, 1265, 1495, 1955, 2431, 3289, 3575, 4301, 4675, 5083, 5525, 6325, 7475, 9775, 12155, 16445, 21505, 25415, 55913, 60775, 82225, 107525, 127075, 279565, 1397825]

約数ペア:

[(1, 1397825), (5, 279565), (11, 127075), (13, 107525), (17, 82225), (23, 60775), (25, 55913), (55, 25415), (65, 21505), (85, 16445), (115, 12155), (143, 9775), (187, 7475), (221, 6325), (253, 5525), (275, 5083), (299, 4675), (325, 4301), (391, 3575), (425, 3289), (575, 2431), (715, 1955), (935, 1495), (1105, 1265)]