81357015

素因数分解:

$3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{647}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 133249536

約数和(自身を除く): 51892521

約数列:

[1, 3, 5, 15, 83, 101, 249, 303, 415, 505, 647, 1245, 1515, 1941, 3235, 8383, 9705, 25149, 41915, 53701, 65347, 125745, 161103, 196041, 268505, 326735, 805515, 980205, 5423801, 16271403, 27119005, 81357015]

約数ペア:

[(1, 81357015), (3, 27119005), (5, 16271403), (15, 5423801), (83, 980205), (101, 805515), (249, 326735), (303, 268505), (415, 196041), (505, 161103), (647, 125745), (1245, 65347), (1515, 53701), (1941, 41915), (3235, 25149), (8383, 9705)]