31487655

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 57576960

約数和(自身を除く): 26089305

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 67, 85, 95, 97, 201, 255, 285, 291, 323, 335, 485, 969, 1005, 1139, 1273, 1455, 1615, 1649, 1843, 3417, 3819, 4845, 4947, 5529, 5695, 6365, 6499, 8245, 9215, 17085, 19095, 19497, 21641, 24735, 27645, 31331, 32495, 64923, 93993, 97485, 108205, 110483, 123481, 156655, 324615, 331449, 370443, 469965, 552415, 617405, 1657245, 1852215, 2099177, 6297531, 10495885, 31487655]

約数ペア:

[(1, 31487655), (3, 10495885), (5, 6297531), (15, 2099177), (17, 1852215), (19, 1657245), (51, 617405), (57, 552415), (67, 469965), (85, 370443), (95, 331449), (97, 324615), (201, 156655), (255, 123481), (285, 110483), (291, 108205), (323, 97485), (335, 93993), (485, 64923), (969, 32495), (1005, 31331), (1139, 27645), (1273, 24735), (1455, 21641), (1615, 19497), (1649, 19095), (1843, 17085), (3417, 9215), (3819, 8245), (4845, 6499), (4947, 6365), (5529, 5695)]