287809925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 405390720

約数和(自身を除く): 117580795

約数列:

[1, 5, 13, 23, 25, 65, 115, 139, 277, 299, 325, 575, 695, 1385, 1495, 1807, 3197, 3475, 3601, 6371, 6925, 7475, 9035, 15985, 18005, 31855, 38503, 41561, 45175, 79925, 82823, 90025, 159275, 192515, 207805, 414115, 500539, 885569, 962575, 1039025, 2070575, 2502695, 4427845, 11512397, 12513475, 22139225, 57561985, 287809925]

約数ペア:

[(1, 287809925), (5, 57561985), (13, 22139225), (23, 12513475), (25, 11512397), (65, 4427845), (115, 2502695), (139, 2070575), (277, 1039025), (299, 962575), (325, 885569), (575, 500539), (695, 414115), (1385, 207805), (1495, 192515), (1807, 159275), (3197, 90025), (3475, 82823), (3601, 79925), (6371, 45175), (6925, 41561), (7475, 38503), (9035, 31855), (15985, 18005)]