81963715

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{811}}^1$

素因数の和:903

約数の個数: 32

約数和(自身を含む): 110496960

約数和(自身を除く): 28533245

約数列:

[1, 5, 17, 29, 41, 85, 145, 205, 493, 697, 811, 1189, 2465, 3485, 4055, 5945, 13787, 20213, 23519, 33251, 68935, 101065, 117595, 166255, 399823, 565267, 964279, 1999115, 2826335, 4821395, 16392743, 81963715]

約数ペア:

[(1, 81963715), (5, 16392743), (17, 4821395), (29, 2826335), (41, 1999115), (85, 964279), (145, 565267), (205, 399823), (493, 166255), (697, 117595), (811, 101065), (1189, 68935), (2465, 33251), (3485, 23519), (4055, 20213), (5945, 13787)]