1285386505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{222193}}^1$

素因数の和:222300

約数の個数: 16

約数和(自身を含む): 1679786640

約数和(自身を除く): 394400135

約数列:

[1, 5, 13, 65, 89, 445, 1157, 5785, 222193, 1110965, 2888509, 14442545, 19775177, 98875885, 257077301, 1285386505]

約数ペア:

[(1, 1285386505), (5, 257077301), (13, 98875885), (65, 19775177), (89, 14442545), (445, 2888509), (1157, 1110965), (5785, 222193)]