81887625

素因数分解:

$3^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1277}}^1$

素因数の和:1320

約数の個数: 64

約数和(自身を含む): 159494400

約数和(自身を除く): 77606775

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 95, 125, 135, 171, 225, 285, 375, 475, 513, 675, 855, 1125, 1277, 1425, 2375, 2565, 3375, 3831, 4275, 6385, 7125, 11493, 12825, 19155, 21375, 24263, 31925, 34479, 57465, 64125, 72789, 95775, 121315, 159625, 172395, 218367, 287325, 363945, 478875, 606575, 655101, 861975, 1091835, 1436625, 1819725, 3032875, 3275505, 4309875, 5459175, 9098625, 16377525, 27295875, 81887625]

約数ペア:

[(1, 81887625), (3, 27295875), (5, 16377525), (9, 9098625), (15, 5459175), (19, 4309875), (25, 3275505), (27, 3032875), (45, 1819725), (57, 1436625), (75, 1091835), (95, 861975), (125, 655101), (135, 606575), (171, 478875), (225, 363945), (285, 287325), (375, 218367), (475, 172395), (513, 159625), (675, 121315), (855, 95775), (1125, 72789), (1277, 64125), (1425, 57465), (2375, 34479), (2565, 31925), (3375, 24263), (3831, 21375), (4275, 19155), (6385, 12825), (7125, 11493)]