1288950

素因数分解:

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

素因数の和:689

約数の個数: 48

約数和(自身を含む): 3447696

約数和(自身を除く): 2158746

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 661, 975, 1322, 1950, 1983, 3305, 3966, 6610, 8593, 9915, 16525, 17186, 19830, 25779, 33050, 42965, 49575, 51558, 85930, 99150, 128895, 214825, 257790, 429650, 644475, 1288950]

約数ペア:

[(1, 1288950), (2, 644475), (3, 429650), (5, 257790), (6, 214825), (10, 128895), (13, 99150), (15, 85930), (25, 51558), (26, 49575), (30, 42965), (39, 33050), (50, 25779), (65, 19830), (75, 17186), (78, 16525), (130, 9915), (150, 8593), (195, 6610), (325, 3966), (390, 3305), (650, 1983), (661, 1950), (975, 1322)]