30815775

素因数分解:

$3^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{643}}^1$

素因数の和:733

約数の個数: 48

約数和(自身を含む): 57496320

約数和(自身を除く): 26680545

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 135, 213, 225, 355, 639, 643, 675, 1065, 1775, 1917, 1929, 3195, 3215, 5325, 5787, 9585, 9645, 15975, 16075, 17361, 28935, 45653, 47925, 48225, 86805, 136959, 144675, 228265, 410877, 434025, 684795, 1141325, 1232631, 2054385, 3423975, 6163155, 10271925, 30815775]

約数ペア:

[(1, 30815775), (3, 10271925), (5, 6163155), (9, 3423975), (15, 2054385), (25, 1232631), (27, 1141325), (45, 684795), (71, 434025), (75, 410877), (135, 228265), (213, 144675), (225, 136959), (355, 86805), (639, 48225), (643, 47925), (675, 45653), (1065, 28935), (1775, 17361), (1917, 16075), (1929, 15975), (3195, 9645), (3215, 9585), (5325, 5787)]