216970975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{857}}^1$

素因数の和:940

約数の個数: 48

約数和(自身を含む): 312792480

約数和(自身を除く): 95821505

約数列:

[1, 5, 13, 19, 25, 41, 65, 95, 205, 247, 325, 475, 533, 779, 857, 1025, 1235, 2665, 3895, 4285, 6175, 10127, 11141, 13325, 16283, 19475, 21425, 35137, 50635, 55705, 81415, 175685, 211679, 253175, 278525, 407075, 456781, 667603, 878425, 1058395, 2283905, 3338015, 5291975, 8678839, 11419525, 16690075, 43394195, 216970975]

約数ペア:

[(1, 216970975), (5, 43394195), (13, 16690075), (19, 11419525), (25, 8678839), (41, 5291975), (65, 3338015), (95, 2283905), (205, 1058395), (247, 878425), (325, 667603), (475, 456781), (533, 407075), (779, 278525), (857, 253175), (1025, 211679), (1235, 175685), (2665, 81415), (3895, 55705), (4285, 50635), (6175, 35137), (10127, 21425), (11141, 19475), (13325, 16283)]