81395925

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2693}}^1$

素因数の和:2750

約数の個数: 48

約数和(自身を含む): 149657088

約数和(自身を除く): 68261163

約数列:

[1, 3, 5, 13, 15, 25, 31, 39, 65, 75, 93, 155, 195, 325, 403, 465, 775, 975, 1209, 2015, 2325, 2693, 6045, 8079, 10075, 13465, 30225, 35009, 40395, 67325, 83483, 105027, 175045, 201975, 250449, 417415, 525135, 875225, 1085279, 1252245, 2087075, 2625675, 3255837, 5426395, 6261225, 16279185, 27131975, 81395925]

約数ペア:

[(1, 81395925), (3, 27131975), (5, 16279185), (13, 6261225), (15, 5426395), (25, 3255837), (31, 2625675), (39, 2087075), (65, 1252245), (75, 1085279), (93, 875225), (155, 525135), (195, 417415), (325, 250449), (403, 201975), (465, 175045), (775, 105027), (975, 83483), (1209, 67325), (2015, 40395), (2325, 35009), (2693, 30225), (6045, 13465), (8079, 10075)]