28111850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{709}}^1$

素因数の和:795

約数の個数: 48

約数和(自身を含む): 57314040

約数和(自身を除く): 29202190

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 61, 65, 122, 130, 305, 325, 610, 650, 709, 793, 1418, 1525, 1586, 3050, 3545, 3965, 7090, 7930, 9217, 17725, 18434, 19825, 35450, 39650, 43249, 46085, 86498, 92170, 216245, 230425, 432490, 460850, 562237, 1081225, 1124474, 2162450, 2811185, 5622370, 14055925, 28111850]

約数ペア:

[(1, 28111850), (2, 14055925), (5, 5622370), (10, 2811185), (13, 2162450), (25, 1124474), (26, 1081225), (50, 562237), (61, 460850), (65, 432490), (122, 230425), (130, 216245), (305, 92170), (325, 86498), (610, 46085), (650, 43249), (709, 39650), (793, 35450), (1418, 19825), (1525, 18434), (1586, 17725), (3050, 9217), (3545, 7930), (3965, 7090)]