128528250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{409}}^1\times {\mathrm{419}}^1$

素因数の和:848

約数の個数: 64

約数和(自身を含む): 322358400

約数和(自身を除く): 193830150

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 125, 150, 250, 375, 409, 419, 750, 818, 838, 1227, 1257, 2045, 2095, 2454, 2514, 4090, 4190, 6135, 6285, 10225, 10475, 12270, 12570, 20450, 20950, 30675, 31425, 51125, 52375, 61350, 62850, 102250, 104750, 153375, 157125, 171371, 306750, 314250, 342742, 514113, 856855, 1028226, 1713710, 2570565, 4284275, 5141130, 8568550, 12852825, 21421375, 25705650, 42842750, 64264125, 128528250]

約数ペア:

[(1, 128528250), (2, 64264125), (3, 42842750), (5, 25705650), (6, 21421375), (10, 12852825), (15, 8568550), (25, 5141130), (30, 4284275), (50, 2570565), (75, 1713710), (125, 1028226), (150, 856855), (250, 514113), (375, 342742), (409, 314250), (419, 306750), (750, 171371), (818, 157125), (838, 153375), (1227, 104750), (1257, 102250), (2045, 62850), (2095, 61350), (2454, 52375), (2514, 51125), (4090, 31425), (4190, 30675), (6135, 20950), (6285, 20450), (10225, 12570), (10475, 12270)]