81862395

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{1279}}^1$

素因数の和:1555

約数の個数: 32

約数和(自身を含む): 139345920

約数和(自身を除く): 57483525

約数列:

[1, 3, 5, 15, 17, 51, 85, 251, 255, 753, 1255, 1279, 3765, 3837, 4267, 6395, 12801, 19185, 21335, 21743, 64005, 65229, 108715, 321029, 326145, 963087, 1605145, 4815435, 5457493, 16372479, 27287465, 81862395]

約数ペア:

[(1, 81862395), (3, 27287465), (5, 16372479), (15, 5457493), (17, 4815435), (51, 1605145), (85, 963087), (251, 326145), (255, 321029), (753, 108715), (1255, 65229), (1279, 64005), (3765, 21743), (3837, 21335), (4267, 19185), (6395, 12801)]