2018188875

素因数分解:

$3^1\times 5^3\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{487}}^1$

素因数の和:805

約数の個数: 64

約数和(自身を含む): 3456820224

約数和(自身を除く): 1438631349

約数列:

[1, 3, 5, 15, 25, 43, 75, 125, 129, 215, 257, 375, 487, 645, 771, 1075, 1285, 1461, 2435, 3225, 3855, 5375, 6425, 7305, 11051, 12175, 16125, 19275, 20941, 32125, 33153, 36525, 55255, 60875, 62823, 96375, 104705, 125159, 165765, 182625, 276275, 314115, 375477, 523525, 625795, 828825, 1381375, 1570575, 1877385, 2617625, 3128975, 4144125, 5381837, 7852875, 9386925, 15644875, 16145511, 26909185, 46934625, 80727555, 134545925, 403637775, 672729625, 2018188875]

約数ペア:

[(1, 2018188875), (3, 672729625), (5, 403637775), (15, 134545925), (25, 80727555), (43, 46934625), (75, 26909185), (125, 16145511), (129, 15644875), (215, 9386925), (257, 7852875), (375, 5381837), (487, 4144125), (645, 3128975), (771, 2617625), (1075, 1877385), (1285, 1570575), (1461, 1381375), (2435, 828825), (3225, 625795), (3855, 523525), (5375, 375477), (6425, 314115), (7305, 276275), (11051, 182625), (12175, 165765), (16125, 125159), (19275, 104705), (20941, 96375), (32125, 62823), (33153, 60875), (36525, 55255)]