263590275

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{661}}^1$

素因数の和:1096

約数の個数: 48

約数和(自身を含む): 471185120

約数和(自身を除く): 207594845

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 409, 661, 975, 1227, 1983, 2045, 3305, 5317, 6135, 8593, 9915, 10225, 15951, 16525, 25779, 26585, 30675, 42965, 49575, 79755, 128895, 132925, 214825, 270349, 398775, 644475, 811047, 1351745, 3514537, 4055235, 6758725, 10543611, 17572685, 20276175, 52718055, 87863425, 263590275]

約数ペア:

[(1, 263590275), (3, 87863425), (5, 52718055), (13, 20276175), (15, 17572685), (25, 10543611), (39, 6758725), (65, 4055235), (75, 3514537), (195, 1351745), (325, 811047), (409, 644475), (661, 398775), (975, 270349), (1227, 214825), (1983, 132925), (2045, 128895), (3305, 79755), (5317, 49575), (6135, 42965), (8593, 30675), (9915, 26585), (10225, 25779), (15951, 16525)]