1520784225

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{8273}}^1$

素因数の和:8351

約数の個数: 72

約数和(自身を含む): 2934291360

約数和(自身を除く): 1413507135

約数列:

[1, 3, 5, 9, 15, 19, 25, 43, 45, 57, 75, 95, 129, 171, 215, 225, 285, 387, 475, 645, 817, 855, 1075, 1425, 1935, 2451, 3225, 4085, 4275, 7353, 8273, 9675, 12255, 20425, 24819, 36765, 41365, 61275, 74457, 124095, 157187, 183825, 206825, 355739, 372285, 471561, 620475, 785935, 1067217, 1414683, 1778695, 1861425, 2357805, 3201651, 3929675, 5336085, 6759041, 7073415, 8893475, 11789025, 16008255, 20277123, 26680425, 33795205, 35367075, 60831369, 80041275, 101385615, 168976025, 304156845, 506928075, 1520784225]

約数ペア:

[(1, 1520784225), (3, 506928075), (5, 304156845), (9, 168976025), (15, 101385615), (19, 80041275), (25, 60831369), (43, 35367075), (45, 33795205), (57, 26680425), (75, 20277123), (95, 16008255), (129, 11789025), (171, 8893475), (215, 7073415), (225, 6759041), (285, 5336085), (387, 3929675), (475, 3201651), (645, 2357805), (817, 1861425), (855, 1778695), (1075, 1414683), (1425, 1067217), (1935, 785935), (2451, 620475), (3225, 471561), (4085, 372285), (4275, 355739), (7353, 206825), (8273, 183825), (9675, 157187), (12255, 124095), (20425, 74457), (24819, 61275), (36765, 41365)]